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Helix, Taxa Only, Exact Match: 434 Treatments

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Helix (Cochlogena) pseudosuccinea     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix phlogophora     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 55 55
Hedera helix     Barbar, Ziad, 2018, New mite records (Acari: Mesostigmata Trombidiformes) from soil and vegetation of some Syrian citrus agrosystems, Acarologia 58 (4), pp. 919-927 : 923 923
Helix hugonis     Sutcharit, Chirasak, Tongkerd, Piyoros, Tan, Shau-Hwai Aileen & Panha, Somsak, 2012, Taxonomic Revision Of Dyakia Janus From Peninsular Malaysia (Pulmonata: Dyakiidae), With Notes On Other Sinistrally Coiled Helicarionoids, Raffles Bulletin of Zoology 60 (2), pp. 279-287 : 280 280
Helix cornu arietis   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 771 771
Hedera helix     K, Philippe Auger, Garrigue, Joseph, Fossoud, Amandine & MigeonK, Alain, 2023, Spider mites (Acariformes, Tetranychidae) of the Massane Nature Reserve (France), Acarologia 63 (2), pp. 306-345 : 318 318
Helix rapida     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 95-96 95-96
Helix grisea   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 773 773
Helix progastor     Breure, Abraham S. H. & Ablett, Jonathan D., 2015, Annotated type catalogue of the Megaspiridae, Orthalicidae, and Simpulopsidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 470, pp. 17-143 : 52-53 52-53
Helix tersannensis   new species  Locard, A., 1878, Description de la faune de la molasse marine et d'eau douce du Lyonnais et du Dauphiné, Archives du Muséum d'Histoire Naturelle de Lyon 2, pp. 1-278 : 206 206
Helix chimmoi     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 31-32 31-32
Helix     Salvador, Rodrigo B., 2014, The fossil land and freshwater snails of Gündlkofen (Middle Miocene, Germany), Zootaxa 3785 (2), pp. 271-287 : 276 276
Helix crepundia     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 67 67
Helix cartusiana   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 15 15
Helix minutissima     Abdou, Ahmed & Bouchet, Philippe, 2000, Nouveaux gastéropodes Endodontidae et Punctidae (Mollusca, Pulmonata) récemment éteints de l’archipel des Gambier (Polynésie), Zoosystema 22 (4), pp. 689-707 : 703 703
Helix novarae     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 97 97
Helix carocolla   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 769 769
Helix cornea-fulva     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 82-83 82-83
Helix (Cochlodonta) tomigera     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 82-83 82-83
Helix tomigeroides     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 83 83
Helix (Cochlodina) pantagruelina var. minor     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix granum     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 44-45 44-45
Helix striatula   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 768 768
Helix auricularia   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 774-775 774-775
Helix torallyi     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 83 83
Helix (Helicigona) pileiformis     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 78 78
Tinodes helix   sp. nov.  Gibon, François-Marie, 2017, New species of Tinodes from Madagascar (Trichoptera, Psychomyiidae), Zootaxa 4318 (2), pp. 364-376 : 365 365
Helix (Cochlogena) rhodospira subsp. chrysostoma     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 66 66
Helix portia     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 56 56
Helix cora     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 42 42
Helix guarani     Breure, Abraham S. H. & Ablett, Jonathan D., 2012, Annotated type catalogue of the Bothriembryontidae and Odontostomidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 182, pp. 1-70 : 12-13 12-13
Helix fusoides     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 63 63
Helix semenlini     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix (Streptaxis) streptodon     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix (Cochlogena) pudica var. rhodostoma     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix (Helicigona) pyramidella var. rosea     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix camaena bairdi   new species  Adams, Henry, 1866, Descriptions of fifteen new species of land and freshwater shells from Formosa, collected by Robert Swinhoe, Esq., consul at Taiwan in that island, Proceedings of the Zoological Society of London 1866, No. 1, pp. 316-319 : 316 316
Helix lutaria   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 772 772
Helix (Cochlogena) vittata var. unicolor     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix (Cochlogena) coxeiranus var. trizona     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix (Cochlogena) coxeiranus var. unicolor     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix tomigeroides     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix lusitanica     Cowie, Robert H., 2015, The recent apple snails of Africa and Asia (Mollusca: Gastropoda: Ampullariidae: Afropomus, Forbesopomus, Lanistes, Pila, Saulea): a nomenclatural and type catalogue. The apple snails of the Americas: addenda and corrigenda, Zootaxa 3940 (1), pp. 1-92 : 58 58
Helix crebriflammea     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 39 39
Helix (Helicodonta) texasiana     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix planorbis   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 769 769
Helix phlogera     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 78 78
Hedera helix     Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part H), Order out of Chaos. Linnaean Plant Types and their Types, London: Linnaean Society of London in association with the Natural History Museum, pp. 557-585 : 558 558
Helix pomatia   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 771 771
Helix montivaga     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 75 75
Helix glabriuscula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 72 72
Helix (Cochlodina) pantagruelina     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix apexfulva   new species  Dixon, G., 1789, A voyage round the world; but more particularly to the north-west coast of America: performed in 1785, 1786, 1787, and 1788, in the King George and Queen Charlotte, Captains Portlock and Dixon., G. Goulding : 354 354
Helix (Trachia) delibrata subsp. var. var. khasiensis     Pall-Gergely, Barna, Ablett, Jonathan D., Szabo, Marton & Neubert, Eike, 2022, Revision of the " Chloritis delibrata (Benson, 1836) " group (Gastropoda, Stylommatophora, Camaenidae), ZooKeys 1086, pp. 1-31 : 1 1
Helix pellucida   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 15 15
Helix barrakporensis   new species  Pfeiffer, L., 1852, Descriptions of eighteen new species of land-shells, from the collection of H. Cuming, esq., Proceedings of the Zoological Society of London 20, pp. 156-160 : 156 156
Helix barbara   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 773-774 773-774
Helix gravida     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 256 256
Helix zeta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 64-65 64-65
Helix (Carocolla) zelandiae     Pugh, Philip J. A. & Scott, Bronwen, 2002, Biodiversity and biogeography of non-marine Mollusca on the islands of the Southern Ocean, Journal of Natural History 36 (8), pp. 927-952 : 935 935
Helix miliola     Breure, Abraham S. H. & Ablett, Jonathan D., 2015, Annotated type catalogue of the Megaspiridae, Orthalicidae, and Simpulopsidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 470, pp. 17-143 : 51 51
Helix (Thalassia) traversi     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 60 60
Helix xanthostoma     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 175 175
Helix glabriuscula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 72-73 72-73
Helix stellula   new species  Gould, A. A., 1844, [Two species of Helix from the Sandwich Islands], Proceedings of the Boston Society of Natural History 1, pp. 174-174 : 174 174
Helix inca     Breure, Abraham S. H. & Ablett, Jonathan D., 2015, Annotated type catalogue of the Megaspiridae, Orthalicidae, and Simpulopsidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 470, pp. 17-143 : 30 30
Helix lactea   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 19 19
Helix (Cochlogena) heterotricha     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 70-71 70-71
Helix gualtierana   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix (Helicigona) pyramidella     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 119 119
Helix gothica   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix aperta     Blacket, Mark J., Shea, Michael, Semeraro, Linda & Malipatil, Mallik B., 2016, Introduced Helicidae Garden Snails in Australia: Morphological and Molecular Diagnostics, Species Distributions and Systematics, Records of the Australian Museum 68 (3), pp. 99-116 : 113 113
Helix phlogera     Breure, Abraham S. H. & Ablett, Jonathan D., 2015, Annotated type catalogue of the Megaspiridae, Orthalicidae, and Simpulopsidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 470, pp. 17-143 : 40 40
Pandanipora helix   sp. nov.  Grischenko, Andrei V., Gordon, Dennis P. & Melnik, Viacheslav P., 2018, Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining, Zootaxa 4484 (1), pp. 1-91 : 9-15 9-15
Helix hygrohylaea     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 71 71
Helix (Cochlodina) pantagruelina subsp. minor     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 75 75
Helix lubrica   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 104 104
Helix paradoxa   new species  Born, Ignatius, 1780, Testacea Musei Caesarei Vindobonensis .., J. P. Kraus : 394 394
Helix ambigua   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 775 775
Helix (Cochlogena) bahiensis     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 64 64
Helix flammigera     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 44 44
Helix doliolum     Hyman, Isabel T. & Ponder, Winston F., 2010, A morphological phylogenetic analysis and generic revision of Australian Helicarionidae (Gastropoda: Pulmonata: Stylommatophora), and an assessment of the relationships of the family 2462, Zootaxa 2462 (1), pp. 1-148 : 113 113
Helix busbyii     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 75-76 75-76
Lestes helix     Mendoza-Penagos, Cristian Camilo, Pérez-Gutiérrez, León A. & Muzón, Javier, 2024, A revision of Lestidae Calvert, 1901 (Odonata: Zygoptera) from Colombia, with the first record of Lestes dichrostigma Calvert, 1909, Zootaxa 5415 (2), pp. 201-240 : 231 231
Helix dunkeri   new species  Pfeiffer, L., 1852, Descriptions of eighteen new species of land-shells, from the collection of H. Cuming, esq., Proceedings of the Zoological Society of London 20, pp. 156-160 : 156 156
Helix oculuscapri   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 768 768
Helix rupestris   new species  Draparnaud, Jacques Philippe Raymond, 1801, Tableau des mollusques terrestres et fluviatiles de la France, Renaud : 71 71
Helix aperta   new species  Born, Ignaz von, 1778, Index rerum naturalium Musei Caesarei Vindobonensis. Verzeichniss der Natürlichen Seltenheiten des K. K. Naturalien Kabinets zu Wien. Erster Theil, Schalthiere. Pars 1, Testacea, K. K. Hof-naturalien-cabinet : 399 399
Asparagales   new species  Cribb, Phillip James, 1980, Three new species of Dendrobium section Ceratobium from Papua New Guinea, Orchadian 6, pp. 174-178 : 174 174
Helix (Cochlogena) cinnamomeolineata     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 66 66
Helix lambda     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 49 49
Helix complanata   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 769 769
Helix vitrea     Cowie, Robert H., 2015, The recent apple snails of Africa and Asia (Mollusca: Gastropoda: Ampullariidae: Afropomus, Forbesopomus, Lanistes, Pila, Saulea): a nomenclatural and type catalogue. The apple snails of the Americas: addenda and corrigenda, Zootaxa 3940 (1), pp. 1-92 : 52 52
Helix pisana   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 60 60
Helix dawsoni   new species  Moore, Charles, 1867, On abnormal conditions of secondary deposits when connected with the Somersetshire and South Wales Coal Basin; and on the age of the Sutton and Southerndown Series, Quarterly Journal of the Geological Society, London 23, pp. 449-566 : 545 545
Helix radiaria     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 57 57
Helix (Cochlogena) rhodospira subsp. illheocola     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 71 71
Helix tau     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 58-60 58-60
Helix setigera   new species  Gould, A. A., 1844, [Two species of Helix from the Sandwich Islands], Proceedings of the Boston Society of Natural History 1, pp. 174-174 : 174 174
Helix apodemeta     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 18 18
Helix hypopolea     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 45 45
Helix irradiata     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 48 48
Helix haliotoidea   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 775 775
Helix mühlfeldtiana   new species  Pfeiffer, L., 1852, Descriptions of eighteen new species of land-shells, from the collection of H. Cuming, esq., Proceedings of the Zoological Society of London 20, pp. 156-160 : 156 156
Apterona helix     Hauser, E., 2014, Die " Seelchen " Oberösterreichs mit Angaben zur Determination und Taxonomie (Lepidoptera, Psychidae), Linzer biologische Beiträge 46 (2), pp. 1041-1086 : 1081 1081
Helix (Succinea) rufovirens     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix campbellica     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 68 68
Helix surrentina var. anacaprica     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 362-363 362-363
Helix aurismalchi   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 112 112
Helix beta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 29 29
Helix     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 261 261
Helix aspersa     Frank, Christa, 2020, Auf den Spuren von Lewis und Clark, des " Oregon " und des " California Trails ": Ein Reisebericht mit Malakologie " Go West " - Following Lewis und Clark, the " Oregon " and the " California Trail ": An itinerary with malacology, Linzer biologische Beiträge 52 (1), pp. 253-308 : 262 262
Helix hochstetteri     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 79-80 79-80
Helix limosa   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 774 774
Helix heloica     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 70 70
Helix nematophora     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 52-53 52-53
Helix (Cochlodina) pantagruelina var. major dentata     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix straminea     Korábek, Ondřej, Juřičková, Lucie & Petrusek, Adam, 2014, Resurrecting Helix straminea, a forgotten escargot with trans-Adriatic distribution: first insights into the genetic variation within the genus Helix (Gastropoda: Pulmonata), Zoological Journal of the Linnean Society 171 (1), pp. 72-91 : 80-84 80-84
Helix subrutila   new species  Mighels, J. W., 1845, Descriptions of shells from the Sandwich Islands, and other localities, Proceedings of the Boston Society of Natural History 2, pp. 18-25 : 19 19
Helix pleurophora     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix subprofuga var. hoemastoma     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 360 360
Helix bellinii     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 359 359
Helix camaena succincta   new species  Adams, Henry, 1866, Descriptions of fifteen new species of land and freshwater shells from Formosa, collected by Robert Swinhoe, Esq., consul at Taiwan in that island, Proceedings of the Zoological Society of London 1866, No. 1, pp. 316-319 : 316-317 316-317
Helix auklandica     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 27-29 27-29
Helix pseudosuccinea     Breure, Abraham S. H. & Borrero, Francisco J., 2008, An annotated checklist of the land snail family Orthalicidae (Gastropoda: Pulmonata: Orthalicoidea) in Ecuador, with notes on the distribution of the mainland species, Zootaxa 1768, pp. 1-40 : 25 25
Helix quadridens   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 107 107
Helix turritella     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 262 262
Helix ventulus     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 262 262
Helix (Bulimus) boissieri     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 65 65
Helix (Cochlohydra) brasiliensis     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 65 65
Helix (Cochlogena) aurismuris     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 63 63
Helix barbatula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 29 29
Helix (Cochlogena) rhodospira     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Edessa helix     Silva, Valeria Juliete Da, Santos, Cleverson Rannieri Meira Dos & Fernandes, Jose Antonio Marin, 2018, Stink bugs (Hemiptera: Pentatomidae) from Brazilian Amazon: checklist and new records, Zootaxa 4425 (3), pp. 401-455 : 420 420
Helix biconcava     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 30 30
Helix biconcava     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 29-30 29-30
Helix obvoluta   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 27 27
Helix spirizona     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 260 260
Helix cactorum     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 65 65
Helix varicosa     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 61-62 61-62
Helix ampullacea     Cowie, Robert H., 2015, The recent apple snails of Africa and Asia (Mollusca: Gastropoda: Ampullariidae: Afropomus, Forbesopomus, Lanistes, Pila, Saulea): a nomenclatural and type catalogue. The apple snails of the Americas: addenda and corrigenda, Zootaxa 3940 (1), pp. 1-92 : 29 29
Helix culminea     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 45-46 45-46
Helix multilimbata     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 51-52 51-52
Helix (Theba) ziczac     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 65 65
Helix rhodinostoma     Breure, Abraham S. H. & Ablett, Jonathan D., 2012, Annotated type catalogue of the Bothriembryontidae and Odontostomidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 182, pp. 1-70 : 21 21
Helix punctata   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 21 21
Hedera helix     Mason, Franco, Rozkošný, Rudolf & Hauser, Martin, 2009, A review of the soldier flies (Diptera: Stratiomyidae) of Sardinia *, Zootaxa 2318, pp. 507-530 : 509-510 509-510
Helix pulchella   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 30 30
Stylommatophora   new species  Habe, Tadashige, 1976, New land and freshwater snails (Mollusca) from Japan, Bulletin of the National Science Museum, Series A (Zoology) 2, No. 4, pp. 225-228 : 226 226
Helix decidua     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 96-97 96-97
Helix tarapotonensis     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix omega     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 54 54
Helix nematophora     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 52 52
Helix (Cochlogena) coxeirana     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 67 67
Helix comboides var. edentula     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 121 121
Helix (Cochlogena) coxeiranus var. dizona     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 121 121
Helix equestrata     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 121 121
Helix scabra   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix incarnata   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 63 63
Helix australasiae     Geiger, Daniel L., 2022, Anton August Heinrich Lichtenstein’s (1794) Catalogus Rerum Naturalium Rarissimarum, pars secunda. Facsimile edition and annotated translation, Zootaxa 5127 (1), pp. 1-126 : 117-118 117-118
Helix carmelita     Geiger, Daniel L., 2022, Anton August Heinrich Lichtenstein’s (1794) Catalogus Rerum Naturalium Rarissimarum, pars secunda. Facsimile edition and annotated translation, Zootaxa 5127 (1), pp. 1-126 : 118 118
Helix regularis     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 93-94 93-94
Helix ungulina   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 772 772
Helix trichoda     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 83 83
Helix newcombi   new species  Pfeiffer, L., 1855, Descriptions of forty-two new species of Helix, from the collection of H. Cuming, Esq, Proceedings of the Zoological Society of London 22, pp. 49-57 : 51 51
Helix (Helicigona) versicolor var. versicolor     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix albella   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 768 768
Helix monochroa   new species  Sowerby II, George Brettingham, 1841, [New species of shells, collected by H. Cuming, Esq. in the Philippine Islands], Proceedings of the Zoological Society of London 9, pp. 1-3 : 1 1
Helix compressivoluta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 38 38
Helix sphaerion   new species  Sowerby II, George Brettingham, 1841, [New species of shells, collected by H. Cuming, Esq. in the Philippine Islands], Proceedings of the Zoological Society of London 9, pp. 1-3 : 2 2
Helix ide     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 46 46
Helix (Cochlogena) rhodospira subsp. vulgaris     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 86 86
Helix nemoralis   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 773 773
Helix (Cochlogena) manoelii     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 73 73
Helix conella     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 69-70 69-70
Helix     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 251 251
Tinodes helix   sp. nov.  Gibon, François-Marie, 2017, New species of Tinodes from Madagascar (Trichoptera, Psychomyiidae), Zootaxa 4318 (2), pp. 364-376 : 369-370 369-370
Helix (Carocolla) zelandiae     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 64 64
Helix heldiana     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 73 73
Helix amarula   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 774 774
Helix neglecta   new species  Draparnaud, Jacques Philippe Raymond, 1805, Histoire naturelle des Mollusques terrestres et fluviatiles de la France, L. Colas : 108 108
Helix vortex   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix ligata     Plazzi, Federico & Pedroni, Guido, 2023, Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy), Biodiversity Data Journal 11, pp. 95688-95688 : 95688 95688
Helix poecila     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 126-127 126-127
Helix (Cochlicella) subuliformis     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix melo subsp. castanea     Breure, Abraham S. H. & Whisson, Corey S., 2012, Annotated type catalogue of Bothriembryon (Mollusca, Gastropoda, Orthalicoidea) in Australian museums, with a compilation of types in other museums, ZooKeys 194, pp. 41-80 : 54 54
Helix schlumbergeri   new species  Morlet, L., 1886, Liste des Conquilles recueillies, au Tonkin, par M. Jourdy, chef d’escardon d’ artillerie, et description d’espèces nouvelles., Journal de Conchyliologie 34, pp. 257-295 : 259 259
Helix polymorpha     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 127-128 127-128
Helix (Cochlogena) citrinovitrea     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 66-67 66-67
Helix atlantica     De Frias Martins, António M., Brito, Carlos P. & Backeljau, Thierry, 2013, Oxychilus (Drouetia) viridescens (Gastropoda: Pulmonata: Oxychilidae), a new species from Santa Maria, Açores, and a review of the subgenus, Zootaxa 3619 (3), pp. 343-368 : 345-356 345-356
Helix trichoda     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 162-163 162-163
Helix spirorbis   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix pilula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 55-56 55-56
Helix (Rimula) arcinella     McGhie, Henry, 2008, Catalogue of type specimens of molluscs in the collection of The Manchester Museum, The University of Manchester, UK, ZooKeys 4 (4), pp. 1-46 : 6 6
Helix polymorpha     McGhie, Henry, 2008, Catalogue of type specimens of molluscs in the collection of The Manchester Museum, The University of Manchester, UK, ZooKeys 4 (4), pp. 1-46 : 6 6
Helix vermiculata   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 20 20
Helix binaria   new species  Pfeiffer, L., 1856, Descriptions of twenty-five new species of land-shells, from the collection of H. Cuming, Esq, Proceedings of the Zoological Society of London 24, pp. 32-36 : 33 33
Helix coma     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 36 36
Helix egesta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 42 42
Helix fulva   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 56 56
Helix apodemeta     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 62-63 62-63
Helix (Cochlogena) viminea     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 85 85
Helix striata   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 38 38
Helix poecila     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 79 79
Hedera helix subsp. maroccana     Jeanmonod, Daniel, 2015, Notes à la flore de Corse, XXV, Candollea 70 (1), pp. 109-140 : 123-124 123-124
Helix pomatia     Dedov, Ivailo & Antonova, Vera, 2015, Terrestrial gastropods of Srebarna Nature Reserve, North-Eastern Bulgaria (Gastropoda), Biodiversity Data Journal 3, pp. 4306-4306 : 4306 4306
Helix hygrohylaea     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 73 73
Helix aspersa     Blacket, Mark J., Shea, Michael, Semeraro, Linda & Malipatil, Mallik B., 2016, Introduced Helicidae Garden Snails in Australia: Morphological and Molecular Diagnostics, Species Distributions and Systematics, Records of the Australian Museum 68 (3), pp. 99-116 : 113 113
Helix (Cochlogena) aurismuris     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 119 119
Helix paziana     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 118 118
Helix sylvestrina     Salvador, Rodrigo Brincalepe, 2013, The fossil pulmonate snails of Sandelzhausen (Early / Middle Miocene, Germany): Succineidae, Testacelloidea and Helicoidea, Zootaxa 3721 (2), pp. 157-171 : 163-165 163-165
Hedera helix     Info Flora, 2021, Info Flora Schweiz - Araliaceae, https://www.infoflora.ch/de/flora/araliaceae.html (accessed 2023-10-20) : -1 -1
Helix hypopolia     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 45-46 45-46
Helix ophelia     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 97-98 97-98
Helix (Bulimus) longiseta     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 73 73
Helix (Helocogena) berlandieriana     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 119 119
Helix marmarina     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 96 96
Helix collyrula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 34 34
Helix stagnalis   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 774 774
Helix scarabaeus   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 768 768
Helix montivaga     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 100-101 100-101
Helix (Cochlogena) pudica     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 121 121
Helix fragilis   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 774 774
Andromma helix   sp. nov.  Bosselaers, Jan & Jocqué, Rudy, 2022, Studies in the Liocranidae (Araneae): revision of Andromma Simon, 1893, European Journal of Taxonomy 850, pp. 1-78 : 53 53
Helix cinctella   new species  Draparnaud, Jacques Philippe Raymond, 1801, Tableau des mollusques terrestres et fluviatiles de la France, Renaud : 87 87
Helix iota     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 47-48 47-48
Turcica helix     Herbert, David G., 2015, An annotated catalogue and bibliography of the taxonomy, synonymy and distribution of the Recent Vetigastropoda of South Africa (Mollusca), Zootaxa 4049 (1), pp. 1-98 : 32 32
Helix conoidea   new species  Draparnaud, Jacques Philippe Raymond, 1801, Tableau des mollusques terrestres et fluviatiles de la France, Renaud : 68 68
Helix byronii   new species  Wood, W., 1828, Supplement to the Index Testaceologicus; or a catalogue of shells, British and foreign, W. Wood : 22 22
Helix pyramidata   new species  Draparnaud, Jacques Philippe Raymond, 1805, Histoire naturelle des Mollusques terrestres et fluviatiles de la France, L. Colas : 80 80
Helix varicosa     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 62-63 62-63
Helix venulata     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 63 63
Helix subprofuga var. maxima     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 360-361 360-361
Lestes helix     Dijkstra, Klaas-Douwe B., Kalkman, Vincent J., Dow, Rory A., Stokvis, Frank R. & Tol, Jan Van, 2014, Redefining the damselfly families: a comprehensive molecular phylogeny of Zygoptera (Odonata). Supporting Information Table 2: List of analysed samples., Systematic Entomology 39 (1), pp. 1-10 : 6 6
Hedera helix     Cabezudo, Baltasar, Solanas, Federico Casimiro-Soriguer & Pérez-Latorre, Andrés V., 2022, Vascular flora of the Sierra de las Nieves National Park and its surroundings (Andalusia, Spain), Phytotaxa 534 (1), pp. 1-111 : 39 39
Hedera helix     Denk, Thomas, Sami, Marco, Teodoridis, Vasilis & Martinetto, Edoardo, 2022, The Late Early Pleistocene Flora Of Oriolo, Faenza (Italy): Assembly Of The Modern Forest Biome, Fossil Imprint 78 (1), pp. 217-262 : 246 246
Helix subrugata     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 95 95
Helix aspersa   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 59 59
Helix atlantica     De Frias Martins, António M., Brito, Carlos P. & Backeljau, Thierry, 2013, Oxychilus (Drouetia) viridescens (Gastropoda: Pulmonata: Oxychilidae), a new species from Santa Maria, Açores, and a review of the subgenus, Zootaxa 3619 (3), pp. 343-368 : 361-364 361-364
Helix gamma     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 44 44
Helix rotundata   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 29 29
Helix buccinella     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 30-31 30-31
Helix perspicua   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 775 775
Helix (Cochlodonta) tomigera     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix poecilosticta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 74 74
Helix citrina   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 771 771
Helix igniflua     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 46-47 46-47
Helix infecta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 47 47
Helix contorta   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix nitida   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 32 32
Helix (Cochlogena) velutohispida     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123 123
Helix mazzullii     Colomba, Stella, Gregorini, Armando, Liberto, Fabio, Reitano, Agatino, Giglio, Salvatore & Sparacio, Ignazio, 2011, Monographic revision of the endemic Helix mazzullii De Cristofori & Jan, 1832 complex from Sicily and re-introduction of the genus Erctella Monterosato, 1894 (Pulmonata, Stylommatophora, Helicidae), Zootaxa 3134, pp. 1-42 : 22-30 22-30
Helix gunnii     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 79 79
Helix greenwoodii     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 77-79 77-79
Helix lucorum   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 773 773
Helix culminea     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 68 68
Helix subprofuga var. turriculata     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 361 361
Helix kermandeci     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 66 66
Helix dejecta     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 121 121
Helix (Cochlogena) heterogramma     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 121 121
Helix aculeata   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 81 81
Helix (Cochlogena) polygramma     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 79 79
Helix brephoides     Breure, Abraham S. H. & Ablett, Jonathan D., 2015, Annotated type catalogue of the Megaspiridae, Orthalicidae, and Simpulopsidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 470, pp. 17-143 : 21 21
Helix (Cochlogena) maximiliana subsp. minor     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 75 75
Helix trilineata     Breure, Abraham S. H. & Whisson, Corey S., 2012, Annotated type catalogue of Bothriembryon (Mollusca, Gastropoda, Orthalicoidea) in Australian museums, with a compilation of types in other museums, ZooKeys 194, pp. 41-80 : 57 57
Helix (Cochlogena) atrovirens     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 63 63
Helix (Cochlogena) rhodospira var. vulgaris     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 124 124
Helix glauca   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 771 771
Helix brachysoma     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 29 29
Helix (Cochlogena) viminea     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 123-124 123-124
Helix vivipara   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 772-773 772-773
Helix pomatia     Frank, Christa, 2017, Über spät-mittelholozäne Molluskengemeinschaften einer Bachbett-Verfüllung aus dem Perschlingtal (Tullner Feld, Niederösterreich), Linzer biologische Beiträge 49 (1), pp. 459-561 : 485 485
Helix sporadica     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 152-153 152-153
Helix disculus   new species  Pfeiffer, L., 1850, Beschreibungen neuer Landschnecken, Zeitschrift für Malakozoologie 7, No. 5, pp. 65-80 : 68 68
Helix corniculum     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 38-39 38-39
Helix taranaki     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 90 90
Helix melo     Breure, Abraham S. H. & Whisson, Corey S., 2012, Annotated type catalogue of Bothriembryon (Mollusca, Gastropoda, Orthalicoidea) in Australian museums, with a compilation of types in other museums, ZooKeys 194, pp. 41-80 : 56 56
Helix oreades     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 76 76
Helix pupa   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 773 773
Helix scharfiae     Herbert, D. G. & Moussalli, A., 2010, Revision of the larger cannibal snails (Natalina s. l.) of southern Africa - Natalina s. s., Afrorhytida and Capitina (Mollusca: Gastropoda: Rhytididae), African Invertebrates 51 (1), pp. 1-1 : 108-113 108-113
Helix cincta     Plazzi, Federico & Pedroni, Guido, 2023, Biodiversity of extant snails (Gastropoda, Mollusca) in the Pliocene Mountain Spur Natural Reserve (Northern Apennine, Italy), Biodiversity Data Journal 11, pp. 95688-95688 : 95688 95688
Helix antipoda     Pugh, Philip J. A. & Scott, Bronwen, 2002, Biodiversity and biogeography of non-marine Mollusca on the islands of the Southern Ocean, Journal of Natural History 36 (8), pp. 927-952 : 934 934
Helix lithoica     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 91 91
Helix ampullacea   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 771 771
Helix     Cowie, Robert H. & Héros, Virginie, 2012, Annotated catalogue of the types of Ampullariidae (Mollusca, Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 34 (4), pp. 793-824 : 807 807
Helix cornu militare   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix pisana     Blacket, Mark J., Shea, Michael, Semeraro, Linda & Malipatil, Mallik B., 2016, Introduced Helicidae Garden Snails in Australia: Morphological and Molecular Diagnostics, Species Distributions and Systematics, Records of the Australian Museum 68 (3), pp. 99-116 : 114 114
Helix chamissoi   new species  Pfeiffer, L., 1855, Descriptions of forty-seven new species of Helicea, from the collection of H. Cuming, Esq, Proceedings of the Zoological Society of London 23, pp. 91-101 : 91 91
Helix brasiliensis     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Helix (Cochlohydra) brasiliensis     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Helix aspersa     Pugh, Philip J. A. & Scott, Bronwen, 2002, Biodiversity and biogeography of non-marine Mollusca on the islands of the Southern Ocean, Journal of Natural History 36 (8), pp. 927-952 : 937 937
Helix hystricella   new species  Pfeiffer, L., 1859, Descriptions of twenty-seven new species of land-shells, from the collection of H. Cuming, Esq, Proceedings of the Zoological Society of London 27, pp. 23-29 : 25 25
Helix (Streptaxis)     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Helix (Cochlogena) cinnamomeolineata     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Helix     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Helix (Cochlogena)     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Helix hispana   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 772 772
Helix (Cochlogena) vittata var. vittatoezonata     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 124 124
Helix vermiculata     Blacket, Mark J., Shea, Michael, Semeraro, Linda & Malipatil, Mallik B., 2016, Introduced Helicidae Garden Snails in Australia: Morphological and Molecular Diagnostics, Species Distributions and Systematics, Records of the Australian Museum 68 (3), pp. 99-116 : 113-114 113-114
Helix antipoda     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 27 27
Hedera helix     Hess, Hans Ernst, Landolt, Elias & Hirzel, Rosmarie, 1976, Flora der Schweiz und angrenzender Gebiete. Band 2. Nymphaceae bis Primulaceae (2 nd edition) (p. 956): Araliaceae, Birkhaeuser Verlag : 787 787
Helix (Huttonella) pseudoleioda     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 115-116 115-116
Helix patagonica     Breure, Abraham S. H. & Ablett, Jonathan D., 2012, Annotated type catalogue of the Bothriembryontidae and Odontostomidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 182, pp. 1-70 : 20 20
Helix obnubila     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 54 54
Helix leucas   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 769 769
Helix eta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 42-43 42-43
Helix lorata     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 251 251
Helix umbraculum     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 75 75
Helix rocayana     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 141 141
Helix (Cochlogena) velutinohispida     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 84 84
Helix     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Helix crystallina   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 23 23
Helix limonoica     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 89 89
Helix (Cochlostyla) pardalis     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 77 77
Helix urnula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 82 82
Helix arbustorum   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 771 771
Helix dimorpha     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 41-42 41-42
Helix (Helicigona) blanchetiana     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 64 64
Helix anguiculus     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 27 27
Helix bolivarii     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 27 27
Helix crepundia     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 44 44
Helix lapicida   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 768 768
Hedera helix     Konrad Lauber, Gerhart Wagner & Andreas Gygax, 2018, Flora Helvetica - Araliaceae, Flora Helvetica, Bern: Haupt Verlag, pp. 976-976 : 976 976
Helix torallyi     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 161 161
Helix sciadium     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 75 75
Helix crebriflammis     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 39 39
Hedera helix     Becherer, 1956, Florae Vallesiacae Supplementum, Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71, pp. 1-556 : 1-556 1-556
Helix calamechroa     Résumé, Jacques Daget, 2003, Les Mollusques terrestres et fluviatiles du mont Nimba, Mémoires du Muséum national d'Histoire naturelle 190, pp. 183-210 : 196 196
Hedera helix     Naves, Pedro, Nóbrega, Filomena & Auger, Philippe, 2021, Updated and annotated review of Tetranychidae occurring in mainland Portugal, the Azores, and Madeira Archipelagos, Acarologia 61 (2), pp. 380-393 : 382 382
Helix heloica     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 69 69
Helix chrysocheilus   new species  Sowerby II, George Brettingham, 1841, [New species of shells, collected by H. Cuming, Esq. in the Philippine Islands], Proceedings of the Zoological Society of London 9, pp. 1-3 : 3 3
Helix elata var. caprensis     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 357 357
Helix lophoica     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 92 92
Helix (Cochlogena) pseudosuccinea     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 79-80 79-80
Helix     Hausdorf, Bernhard, 2003, Revision of the genus Caucasocressa from the eastern Pontic Region (Gastropoda: Hygromiidae), Journal of Natural History 37 (21), pp. 2627-2646 : 2628 2628
Helix (Bulimus) pubescens     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 80 80
Helix alpha     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 26 26
Helix itala   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 772 772
Helix   gen. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 768 768
Helix onca     Breure, Abraham S. H. & Ablett, Jonathan D., 2011, Annotated type catalogue of the Amphibulimidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 138, pp. 1-52 : 18 18
Helix phlogophor     Pugh, Philip J. A. & Scott, Bronwen, 2002, Biodiversity and biogeography of non-marine Mollusca on the islands of the Southern Ocean, Journal of Natural History 36 (8), pp. 927-952 : 933 933
Helix tentaculata   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 774 774
Helix turritella     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 166-167 166-167
Helix amalfitana     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 359 359
Helix balthica   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 775 775
Helix guttula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 93 93
Helix labyrinthus   new species  Lamarck, J. B. P. A. de M. de, 1792, Sur quatre espèces d'hélices, Journal d'Histoire Naturelle 2, pp. 347-353 : 352 352
Helix fatua     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 43 43
Helix neritoidea   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 775 775
Helix tristis     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 261 261
Helix cerioi     Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 357-358 357-358
Helix decollata   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 773 773
Helix pygmaea   new species  Draparnaud, Jacques Philippe Raymond, 1801, Tableau des mollusques terrestres et fluviatiles de la France, Renaud : 93 93
Helix nucula     Neubert, Eike & Korábek, Ondřej, 2015, Comment on Psonis et al. (2015): ‘ Evaluation of the taxonomy of Helix cincta (Muller, 1774) and Helix nucula (Mousson, 1854); insights using mitochondrial DNA sequence data’, Journal of Natural History 49 (37), pp. 2257-2263 : 2258-2262 2258-2262
Helix dunniae     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 76-77 76-77
Helix (Paryphanta) gilliesi     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 77 77
Helix epsilon     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 70 70
Edessa (Edessa) helix     Mendonça, Maria Thayane Da Silva, Silva, Valéria Juliete Da & Fernandes, José Antônio Marin, 2023, Diagnose of the nominal subgenus of Edessa and description of the E. sexdens group (Heteroptera, Pentatomidae, Edessinae), Zootaxa 5240 (1), pp. 1-63 : 26 26
Helix collyrulla     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 116-117 116-117
Helix abyssorum     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 8 8
Helix (Cochlogena) vittata var. vittato zonata     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 124 124
Helix (Xenothauma) baroni     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 23 23
Helix abyssorum     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 61 61
Helix pomatia     Dedov, Ivailo & Antonova, Vera, 2015, Terrestrial gastropods of Srebarna Nature Reserve, North-Eastern Bulgaria (Gastropoda), Biodiversity Data Journal 3, pp. 4306-4306 : 4306 4306
Helix (Patula) stokesi     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 58 58
Helix janthina   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 772 772
Helix figulina     Maroulis, Leonidas, Vardinoyannis, Katerina, Karakasi, Danae, Proios, Konstantinos, Mylonas, Moissis & Triantis, Kostas A, 2022, The land snails (Mollusca, Gastropoda) of Kea island (Aegean, Greece), Biodiversity Data Journal 10, pp. 87720-87720 : 87720 87720
Helix (Cochlogena) maximiliana var. minor     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix moyobambensis     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix (Cochlicella) obeliscus     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix pachystyla     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 85 85
Helix reinga     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 85 85
Helix porphyrostoma     Geiger, Daniel L., 2022, Anton August Heinrich Lichtenstein’s (1794) Catalogus Rerum Naturalium Rarissimarum, pars secunda. Facsimile edition and annotated translation, Zootaxa 5127 (1), pp. 1-126 : 117 117
Helix cornea   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 770 770
Helix (Cochlodina) pantagruelina     Breure, Abraham S. H., 2013, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda) in the Museum fuer Naturkunde, Berlin, ZooKeys 279, pp. 1-101 : 36 36
Helix cactorum     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 31 31
Helix (Helicodonta) pileiformis     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix regularis     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 94-95 94-95
Helix (Cochlogena) polygramma     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix perversa   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 772 772
Helix cellaria   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 28 28
Helix vulpina     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 253 253
Helix chordata     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 33-34 33-34
Helix caput-spinulae     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 69 69
Helix stipulata     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 57-58 57-58
Helix zoographica     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 178-179 178-179
Helix oreades     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 114 114
Helix (Cochlogena) coxeirana     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 120 120
Hedera helix   spec. nov.  Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm: Laurentius Salvius : 202 202
Helix algira   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 769 769
Helix obscura   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 103 103
Herpetopoma helix   comb. nov.  Herbert, D. G., 2012, A revision of the Chilodontidae (Gastropoda: Vetigastropoda: Seguenzioidea) of southern Africa and the south-western Indian Ocean, African Invertebrates 53 (2), pp. 381-381 : 439-442 439-442
Helix nivalis     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 109 109
Helix (Cochlogena) coxeiranus var. nigrescens     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix haemastoma   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 773 773
Helix newcombi   new species  Reeve, Lovell A., 1851, Conchologia Iconica: or, illustrations of the shells of molluscous animals. Volume VII. Containing a monograph of the genus Helix, L. Reeve : -1 -1
Helix decora     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 250 250
Helix nitidula   new species  Draparnaud, Jacques Philippe Raymond, 1805, Histoire naturelle des Mollusques terrestres et fluviatiles de la France, L. Colas : 117 117
Helix tupacii     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 166 166
Helix kawaiensis   new species  Pfeiffer, L., 1855, Descriptions of forty-two new species of Helix, from the collection of H. Cuming, Esq, Proceedings of the Zoological Society of London 22, pp. 49-57 : 52 52
Helix (Cochlogena) heterogramma     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 70 70
Helix detrita   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 101 101
Helix Plectotropis fulvicans   new species  Adams, Henry, 1866, Descriptions of fifteen new species of land and freshwater shells from Formosa, collected by Robert Swinhoe, Esq., consul at Taiwan in that island, Proceedings of the Zoological Society of London 1866, No. 1, pp. 316-319 : 316 316
Helix (Cochlodina) pantagruelina     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 77 77
Helix striatella     Résumé, Jacques Daget, 2003, Les Mollusques terrestres et fluviatiles du mont Nimba, Mémoires du Muséum national d'Histoire naturelle 190, pp. 183-210 : 190 190
Helix fricki   new species  Pfeiffer, L., 1858, Descriptions of eleven new species of land-shells, from the collection of H. Cuming, Esq, Proceedings of the Zoological Society of London 26, pp. 20-23 : 21 21
Pseudopolycope helix   sp. nov.  Kornicker, Louis S., Iliffe, Thomas M. & Harrison-Nelson, Elizabeth, 2007, Ostracoda (Myodocopa) from Anchialine Caves and Ocean Blue Holes, Zootaxa 1565 (1), pp. 1-151 : 81-84 81-84
Helix tupacii     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 84 84
Helix ophelia     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 98 98
Helix linostoma     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 90 90
Helix (Succinea) rufovirens     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 80 80
Helix dimorpha     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 41 41
Helix thamnoica     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 159-160 159-160
Helix putris   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 774 774
Helix kappa     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 48-49 48-49
Helix urnula     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 82 82
Helix lichnorum     Breure, Abraham S. H. & Ablett, Jonathan D., 2014, Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London, ZooKeys 392, pp. 1-367 : 88 88
Helix jeffreysiana     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 80-81 80-81
Helix jeffreysiana     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 81 81
Helix (Cochlogena) manoelii     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix costata   new species  Müller, Otto Friedrich, 1774, Vermium terrestrium et fluviatilium, seu, Animalium infusoriorum, helminthicorum et testaceorum, non marinorum, succincta historia, Volumen Alterum, Heineck et Faber : 31 31
Helix ringens   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 769 769
Helix hungerfordiana   new species  Moellendorff, O. F. Von, 1884, Materialien zur Fauna von China., Jahrbücher der Deutschen Malakozoologischen Gesellschaft 11, pp. 307-390 : 336 336
Helix otis   new species  Lightfoot, John, 1786, A catalogue of the Portland Museum, lately the property of the Dutchess Dowager of Portland, deceased: which will be sold by auction, by Mr. Skinner and Co. on Monday the 24 th of April, 1786, and the thirty-seven following days ... at her late dwelling-house, in Privy-garden, Whitehall; by order of the acting executrix, Skinner and Co. : 38 38
Helix borealis     Korábek, Ondřej, Kosová, Tereza, Dolejš, Petr, Petrusek, Adam, Neubert, Eike & Juřičková, Lucie, 2021, Geographic isolation and human-assisted dispersal in land snails: a Mediterranean story of Helix borealis and its relatives (Gastropoda: Stylommatophora: Helicidae), Zoological Journal of the Linnean Society 193 (4), pp. 1310-1335 : 1332-1335 1332-1335
Helix (Cochlogena) maximiliana var. melanostoma     Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, Revue suisse de Zoologie 123 (1), pp. 113-138 : 122 122
Helix hispida   spec. nov.  Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm: Laurentius Salvius : 771 771
Helix fulgens   new species  Sowerby II, George Brettingham, 1841, [New species of shells, collected by H. Cuming, Esq. in the Philippine Islands], Proceedings of the Zoological Society of London 9, pp. 1-3 : 3 3
Helix luteola     Cowie, Robert H., Héros, Virginie, Yeung, Norine W. & Hayes, Kenneth A., 2016, Annotated catalogue of types of Hawaiian land and freshwater snails (Mollusca: Gastropoda) in the Muséum national d’Histoire naturelle, Paris, with lectotype designations, Zoosystema 38 (2), pp. 245-266 : 257 257
Helix patagonica     Breure, Abraham S. H., 2016, Annotated type catalogue of the Orthalicoidea (Mollusca, Gastropoda, Stylommatophora) in the Muséum d’histoire naturelle, Geneva, Revue suisse de Zoologie 123 (1), pp. 57-103 : 77-78 77-78
Helix poecilosticta     Brook, Fred J. & Ablett, Jonathan D., 2019, Type material of land snails (Mollusca: Gastropoda) described from New Zealand by taxonomists in Europe and North America between 1830 and 1934, and the history of research on the New Zealand land snail fauna from 1824 to 1917, Zootaxa 4697 (1), pp. 1-117 : 74-75 74-75
Helix chlorochroa   new species  Sowerby II, George Brettingham, 1841, [New species of shells, collected by H. Cuming, Esq. in the Philippine Islands], Proceedings of the Zoological Society of London 9, pp. 1-3 : 2 2
Hebeia helixensis     Smith, Patrick M., Paterson, John R. & Brock, Glenn A., 2018, Trilobites and agnostids from the Goyder Formation (Cambrian Series 3, Guzhangian; Mindyallan), Amadeus Basin, central Australia, Zootaxa 4396 (1), pp. 1-67 : 14-16 14-16
Tekellina helixicis   sp. nov.  Gao, Cai-Xia & Li, Shu-Qiang, 2014, Comb-footed spiders (Araneae: Theridiidae) in the tropical rainforest of Xishuangbanna, Southwest China, Zoological Systematics 39 (1), pp. 1-135 : 90 90

Specimens