taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
09528795FFD2FFB16252FBB8D881FC47.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264670/files/figure.png	https://doi.org/10.5281/zenodo.15264670	Fig. 3. Caulleriella jormungandri sp. nov., holotype (ZMBN 157421). A. Dorsolateral view. B. Ventrolateral view. Scale bar = 1 mm.	Fig. 3. Caulleriella jormungandri sp. nov., holotype (ZMBN 157421). A. Dorsolateral view. B. Ventrolateral view. Scale bar = 1 mm.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
09528795FFD2FFB16252FBB8D881FC47.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264672/files/figure.png	https://doi.org/10.5281/zenodo.15264672	Fig. 4. Caulleriella jormungandri sp. nov., complete specimens. A. DNA voucher. B–H. Paratypes. A. DNA voucher MG1043 (no repository, specimen used for SEM). B. SMF 32878. C. SMF 32879. D. SMF 32880. E–G. ZMBN 157520. H. ZMBN 157516. Scale bar = 1 mm.	Fig. 4. Caulleriella jormungandri sp. nov., complete specimens. A. DNA voucher. B–H. Paratypes. A. DNA voucher MG1043 (no repository, specimen used for SEM). B. SMF 32878. C. SMF 32879. D. SMF 32880. E–G. ZMBN 157520. H. ZMBN 157516. Scale bar = 1 mm.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
09528795FFD2FFB16252FBB8D881FC47.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264674/files/figure.png	https://doi.org/10.5281/zenodo.15264674	Fig. 5. Caulleriella jormungandri sp. nov., anterior morphology. A. Paratype ZMBN 157681. B. DNA voucher MG1043 (no repository, specimen used for SEM). C–D. DNA voucher MG763 (no repository, specimen used for SEM).E. DNA voucher MG1042 (no repository, specimen used for SEM).F. Paratype ZMBN 157520. A, C. Anterior end in lateral view. B, F. Anterior end in dorsal view. D–E. Nuchal organs. Abbreviations: br1 = first branchia; ch1 = first chaetiger; ch2 = second chaetiger; dT = dorsal tentacle; mo = mouth; nuO = nuchal organ; per = peristomium; pr = prostomium. Scale bars: A = 200 μm; B = 250 μm; C, F = 100 μm; D–E = 10 μm.	Fig. 5. Caulleriella jormungandri sp. nov., anterior morphology. A. Paratype ZMBN 157681. B. DNA voucher MG1043 (no repository, specimen used for SEM). C–D. DNA voucher MG763 (no repository, specimen used for SEM).E. DNA voucher MG1042 (no repository, specimen used for SEM).F. Paratype ZMBN 157520. A, C. Anterior end in lateral view. B, F. Anterior end in dorsal view. D–E. Nuchal organs. Abbreviations: br1 = first branchia; ch1 = first chaetiger; ch2 = second chaetiger; dT = dorsal tentacle; mo = mouth; nuO = nuchal organ; per = peristomium; pr = prostomium. Scale bars: A = 200 μm; B = 250 μm; C, F = 100 μm; D–E = 10 μm.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
09528795FFD2FFB16252FBB8D881FC47.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264678/files/figure.png	https://doi.org/10.5281/zenodo.15264678	Fig. 6. Caulleriella jormungandri sp. nov., schematic representation. A. Complete specimen, dorsal view. B. Anterior end, dorsal view. C. Anterior end, lateral view. D. Bidentate spine. E. Cross section of anterior segment. F. Cross section of posterior segment. Abbreviations: br = branchiae; br1 = first branchia; br2 = second branchia; ch1 = first chaetiger; ch2 = second chaetiger; dT = dorsal tentacle; per = peristomium; pr = prostomium; pyg = pygidium. Scale bars: A = 1 mm; B–C = 250 μm; D = 10 μm; E–F = 200 μm.	Fig. 6. Caulleriella jormungandri sp. nov., schematic representation. A. Complete specimen, dorsal view. B. Anterior end, dorsal view. C. Anterior end, lateral view. D. Bidentate spine. E. Cross section of anterior segment. F. Cross section of posterior segment. Abbreviations: br = branchiae; br1 = first branchia; br2 = second branchia; ch1 = first chaetiger; ch2 = second chaetiger; dT = dorsal tentacle; per = peristomium; pr = prostomium; pyg = pygidium. Scale bars: A = 1 mm; B–C = 250 μm; D = 10 μm; E–F = 200 μm.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
09528795FFD2FFB16252FBB8D881FC47.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264682/files/figure.png	https://doi.org/10.5281/zenodo.15264682	Fig. 7. Caulleriella jormungandri sp. nov., chaetae morphology. A–B. Paratype ZMBN 157681. D–G. Paratype SMF 32807. A. First three notopodia. B. First three neuropodia. C. Paratype (MG1043), neuropodial spines. D–G. Neuropodial spines. Scale bars: A–B = 20 μm; C = 10 μm; D–G = 20 μm.	Fig. 7. Caulleriella jormungandri sp. nov., chaetae morphology. A–B. Paratype ZMBN 157681. D–G. Paratype SMF 32807. A. First three notopodia. B. First three neuropodia. C. Paratype (MG1043), neuropodial spines. D–G. Neuropodial spines. Scale bars: A–B = 20 μm; C = 10 μm; D–G = 20 μm.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
09528795FFD2FFB16252FBB8D881FC47.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264666/files/figure.png	https://doi.org/10.5281/zenodo.15264666	Fig. 1. Distribution and sampling. A. Type localities of Caulleriella jormungandri sp. nov. and Raricirrus arcticus Buzhinskaja & Smirnov, 2017 (black squares) and study area. B. Study area with station locations: the black circle indicates the position of LCVF where both species were found, black triangles indicate additional locations where C. jormungandri was found; the insert shows the Barite Field diffuse venting area of the field, with dense worm forests formed by the siboglinid Sclerolinum contortum Smirnov, 2000. Image credit: Center for Deep Sea Research, University of Bergen.	Fig. 1. Distribution and sampling. A. Type localities of Caulleriella jormungandri sp. nov. and Raricirrus arcticus Buzhinskaja & Smirnov, 2017 (black squares) and study area. B. Study area with station locations: the black circle indicates the position of LCVF where both species were found, black triangles indicate additional locations where C. jormungandri was found; the insert shows the Barite Field diffuse venting area of the field, with dense worm forests formed by the siboglinid Sclerolinum contortum Smirnov, 2000. Image credit: Center for Deep Sea Research, University of Bergen.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
09528795FFD9FFAD61E9F9FADD6FF93C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264684/files/figure.png	https://doi.org/10.5281/zenodo.15264684	Fig. 8. Raricirrus arcticus Buzhinskaja & Smirnov, 2017, complete specimens. A, F. ZMBN 157688. B–C. ZMBN 157689. D–E, G. ZMBN 157686. H. ZMBN 157685. Scale bar = 1 mm.	Fig. 8. Raricirrus arcticus Buzhinskaja & Smirnov, 2017, complete specimens. A, F. ZMBN 157688. B–C. ZMBN 157689. D–E, G. ZMBN 157686. H. ZMBN 157685. Scale bar = 1 mm.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
09528795FFD9FFAD61E9F9FADD6FF93C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/15264686/files/figure.png	https://doi.org/10.5281/zenodo.15264686	Fig. 9. Raricirrus arcticus Buzhinskaja & Smirnov, 2017, details. A–G. ZMBN 157684. H–J. ZMBN 157685.A. Posterior parapodia.B. Anterior end, lateral view.C. Chaetae of first neuropodium. D. Spines. E. Pectinate chaetae. F. Detail of serrated capillary chaeta. G. Detail of spine. H. Spines. I. Pectinate chaetae. J. Detail of serrated capillary chaeta. Abbreviations: ch1 = first chaetiger; nuO = nuchal organ; per = peristomium; pr = prostomium. Scale bars: A–B = 100 μm; C, J = 10 μm; D, G–I = 20 μm; E–F = 2 μm.	Fig. 9. Raricirrus arcticus Buzhinskaja & Smirnov, 2017, details. A–G. ZMBN 157684. H–J. ZMBN 157685.A. Posterior parapodia.B. Anterior end, lateral view.C. Chaetae of first neuropodium. D. Spines. E. Pectinate chaetae. F. Detail of serrated capillary chaeta. G. Detail of spine. H. Spines. I. Pectinate chaetae. J. Detail of serrated capillary chaeta. Abbreviations: ch1 = first chaetiger; nuO = nuchal organ; per = peristomium; pr = prostomium. Scale bars: A–B = 100 μm; C, J = 10 μm; D, G–I = 20 μm; E–F = 2 μm.	2025-04-04	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya		Zenodo	biologists	Grosse, Maël;Kongsrud, Jon Anders;Alvestad, Tom;Eilertsen, Mari Heggernes;Budaeva, Nataliya			
