Helicarion permolle Stoliczka, 1873

Goh, Soo-Mun, Jasrul, Dulipat, Lee, Mei-Yi, Vermeulen, Jaap J. & Liew, Thor-Seng, 2025, From 153 - year-old records to contemporary discoveries: land snail (Mollusca, Gastropoda) diversity in Penang Hill, Malaysia, ZooKeys 1230, pp. 99-154 : 99-154

publication ID	https://doi.org/10.3897/zookeys.1230.136906
publication LSID	lsid:zoobank.org:pub:0FBF41B0-1D35-4A31-9653-B1F475FBDF80
DOI	https://doi.org/10.5281/zenodo.14976173
persistent identifier	https://treatment.plazi.org/id/BA505C82-5B74-5084-AAF2-75A2C6081E18
treatment provided by	ZooKeys by Pensoft (2025-03-05 18:13:24, last updated 2025-03-07 00:01:36)
scientific name	Helicarion permolle Stoliczka, 1873
status

Treatment

Figs 11 D View Figure 11 , 21 C View Figure 21

Material examined.

Malaysia • Penang Hill, The Habitat, Habitat nature trail, Plot. 04 ; 5.4231 ° N, 100.2668 ° E; 770 m a. s. l.; 5 Sept. 2022; T. S. Liew, J. Dulipat, S. M. Goh leg.; BOR/MOL 15117 GoogleMaps • same data as for preceding; BOR/MOL 15480 GoogleMaps • Penang Hill, The Habitat, Habitat nature trail, Plot. 05 ; 5.4228 ° N, 100.2653 ° E; 770 m a. s. l.; 5 Sept. 2022; T. S. Liew, J. Dulipat, S. M. Goh leg.; BOR/MOL 15196 GoogleMaps • Penang Hill, The Habitat, Habitat nature trail, Plot. 07 ; 5.4210 ° N, 100.2642 ° E; 760 m a. s. l.; 6 Sept. 2022; T. S. Liew, J. Dulipat, S. M. Goh, M. Y. Lee leg.; BOR/MOL 15144 GoogleMaps • Penang Hill, Botanical garden, Plot. 12 ; 5.4396 ° N, 100.2860 ° E; 85 m a. s. l.; 4 Sept. 2022; T. S. Liew, J. Dulipat, S. M. Goh leg.; BOR/MOL 15121 GoogleMaps • Penang Hill, Trail from Viaduct to Claremont, after shelter, Plot. 27 ; 5.4205 ° N, 100.2724 ° E; 500 m a. s. l.; 26 Oct. 2022; T. S. Liew, J. Dulipat leg.; BOR/MOL 15235 GoogleMaps • Penang Hill, Botanical garden, Plot. 29 ; 5.4400 ° N, 100.2866 ° E; 75 m a. s. l.; 2 Feb. 2023; T. S. Liew, M. Y. Lee, A. Yusni leg.; BOR/MOL 15742 GoogleMaps • same data as for preceding; BOR/MOL 15768 GoogleMaps • Penang Hill, By Path H, Plot. 33 ; 5.4210 ° N, 100.2701 ° E; 610 m a. s. l.; 4 Feb. 2023; T. S. Liew, A. Yusni leg.; BOR/MOL 15741 GoogleMaps • Penang Hill, Path B, Random 1. PathB ; 5.4216 ° N, 100.2674 ° E; 730 m a. s. l.; 4 Sept. 2022; T. S. Liew, J. Dulipat leg.; BOR/MOL 15109 GoogleMaps .

Remarks.

This species was previously described by Stoliczka (1873), and it is one of the most common semi-slugs from Penang Hill. It was listed as taxon inquirendum on MolluscaBase (2024) [https://molluscabase.org/aphia.php?p=taxdetails&id=1337679]. We suggest that this is a valid species as the specimens fit the description in Stoliczka (1873).

References

MolluscaBase (2024) MolluscaBase. https://doi.org/10.14284/448 [accessed 22 September 2024]

Stoliczka F (1873) On the land shells of Penang Island, with descriptions of the animals and anatomical notes; part second, Helicacea. Journal of the Asiatic Society of Bengal 42: 11-38. https://www.biodiversitylibrary.org/page/35546163#page/25/mode/1up

Stoliczka F (1873) On the land shells of Penang Island, with descriptions of the animals and anatomical notes; part second, Helicacea. Journal of the Asiatic Society of Bengal 42: 11–38. https://www.biodiversitylibrary.org/page/35546163#page/25/mode/1up

Figures

Figure 11. A Tanychlamys Penang sp. 2 BOR / MOL 15759 B Tanychlamys stephoides (Stoliczka, 1873) BOR / MOL 15164 C Tanychlamys tersa (Issel, 1874) BOR / MOL 15533 D Helicarion permolle Stoliczka, 1873 BOR / MOL 15741 E Bradybaena similaris (A. Férussac, 1821) BOR / MOL 15772 F Trichochloritis penangensis (Stoliczka, 1873) BOR / MOL 15291. Scale bars: 1 mm (A – C); 10 mm (D – F).

Figure 21. A Tanychlamys Penang sp. 2 B Tanychlamys tersa (Issel, 1874) C Helicarion permolle Stoliczka, 1873 D Bradybaena similaris (A. Férussac, 1821) E Vitrinopsis sp. F Vitrinopsis nucleata (Stoliczka, 1873).