Bensonella lakainguta Hwang, 2014

Páll-Gergely, Barna & White, Tom S., 2023, Solving the mystery of the misunderstood Bensonella plicidens (Benson, 1849) (Gastropoda: Stylommatophora: Hypselostomatidae), Journal of Natural History 56 (45 - 48), pp. 2011-2029 : 2025-2026

publication ID	https://doi.org/10.1080/00222933.2022.2152750
DOI	https://doi.org/10.5281/zenodo.7560947
persistent identifier	https://treatment.plazi.org/id/2050F30F-BA46-FFCF-FE5E-255FFDC8FC90
treatment provided by	Plazi (2023-01-20 07:39:44, last updated 2024-11-25 20:25:31)
scientific name	Bensonella lakainguta Hwang, 2014
status

Treatment

Bensonella lakainguta Hwang, 2014 View in CoL

( Figures 7–8 View Figure 7 View Figure 8 , 9 View Figure 9 (e–h))

Boysidia (Bensonella) plicidens – Pilsbry, 1917 (in Pilsbry 1916 –1918): 198 (partim), pl. 34, figs 3, 9–10

Boysidia (Bensonella) plicidens View in CoL – Habe 1956: 109, figs 9–11

Bensonella plicidens View in CoL – Minato 1988: 41

Bensonella plicidens View in CoL – Schileyko 1998: 139, fig. 159

Bensonella plicidens View in CoL – Maassen 1999: 126

Bensonella plicidens lakainguta Hwang, 2014: 18 View in CoL , figs 2–4

Boysidia (Bensonella) qingliangfengensis F. Fang, J. Wang and Y. Chen, 2015: 692 View in CoL , fig. 1 new synonym

Material examined

NHMUK 201901108 About NHMUK , 12 About NHMUK shells, Omi, Japan, Hirase coll. 457 ; NHMUK 20191128 About NHMUK , three shells, Rijozen , Omi, Japan ; NHMW-MO-38313 (1 shell), Mt. Fujiwara, 300 m, Japan, coll. Blume ex coll. Azuma , 24 September 1951 ; NHMW-MO-55810 (5 shells), Japan, Mie Pref., Fujiwara-dake , 300 m, coll. Edlauer ex coll. Kuiper ; NHMW-MO-38645 (4 shells), Yoro, Mino ; NHMW-MO-69480 (2 shells), Riozen, Omi, Japan, coll. Oberwimmer ex coll. Jetschin ; NHMW-MO-113726 (3 shells), Omi, Japan, coll. Rušnov ; HNHM 105323 (figured shell), Japan, Kochi Prefecture, Kami-shi, Ryugado Prefectural National Park , above the cave, 500 m along a side-road, 290 m, 33.601917°N, 133.746217°E, Leg. Hunyadi, A., Murányi, D. and Páll-Gergely, B., 08 August 2016. GoogleMaps

Remarks

In the original description, Hwang (2014) mentioned three differences between Indian B. plicidens and the subspecies Bensonella plicidens lakainguta . The most important of them was the submarginal elevations of columellar, basal and palatal barriers, i.e. anterior to the hooks those barriers become more elevated. However, this trait can also be seen in Indian B. hooki sp. nov. ( Figure 9 View Figure 9 (c,d)); see differences between B. lakainguta and B. hooki sp. nov. outlined under the description of the latter.

Boysidia (Bensonella) qingliangfengensis ( Figure 7 View Figure 7 (e,f)) was described from the border region of the Chinese Anhui and Zhejiang Provinces (very close to Pilsbry̾s (1917) record from Hangzhou), and is claimed to be larger than B . plicidens, yet looks identical for all other characters. Therefore , it is treated here as a junior synonym of B . lakainguta Hwang, 2014.

Maassen (1999) mentioned that he compared Bensonella karoensis with Japanese shells of Bensonella plicidens (= Bensonella lakainguta ). Furthermore, he erroneously stated that Bensonella plicidens inhabited Thailand.

References

Habe T. 1956. Anatomical studies on the Japanese Land Snails (7). Venus (Japanese Journal of Malacology). 19 (2): 109 - 117.

Hwang C-C. 2014. A new subspecies of land snail Bensonella plicidens lakainguta (Gastropoda, Vertiginidae) from southern Taiwan. Bull Malacol Taiwan 貝類學報. 37: 15 - 26.

Maassen WJM. 1999. Some new records of Streptaxidae and Hypselostomatidae from Sumatra, Indonesia, with descriptions of three new species. Basteria. 63: 121 - 126.

Minato H. 1988. A systematic and bibliographic list of the Japanese land snails. Shirahama: H. Minato.

Pilsbry HA. 1916 - 1918. Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 24: Pupillidae (Gastrocoptinae). pp 1 - 380, pls 1 - 49. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1 - 112, Pl. 1 - 13, 18 Dec 1916; pp. 113 - 176, pl. 14 - 29, 18 July 1917; pp. 177 - 256, pl. 30 - 38, 09 Nov 1917; pp. 257 - 380, pl. 39 - 49, 24 April 1918].

Schileyko AA. 1998. Treatise on recent terrestrial pulmonate molluscs. Part 2. Gastrocoptidae, Hypselostomatidae, Vertiginidae, Truncatellinidae, Pachnodidae, Enidae, Sagdidae. Ruthenica. Supplement 2: 129 - 261.

Figures

Figure 7. Bensonella lakainguta Hwang, 2014. a–c: Holotype of Bensonella lakainguta (NMNS-7244-00); D: Bensonella lakainguta Hwang, 2014, Japan,Kochi Prefecture, Kami-shi,Ryugado Prefectural National Park, above the cave, 500 m along a side-road, 290 m, 33.601917°N, 133.746217°E, Leg. A. Hunyadi, D. Murányi and B. Páll-Gergely, 8 October 2016 (HNHM 105323); e–f: Holotype of Boysidia (Bensonella) qingliangfengensis F. Fang, J. Wang and Y. Chen, 2015. Photos: a–c and e–f: images from the original descriptions, d: B. Páll-Gergely. Figs e and f are not to scale.

Figure 8. Bensonella lakainguta Hwang, 2014, Japan, Omi, NHMUK 201901108, specimen 1. All photos: B. Páll-Gergely.

Figure 9. a, b: Bensonella plicidens (Benson, 1849), NHMUK 56.9.15.69A, specimen 1 (same as Figure 4); c,d: Bensonella hooki sp. nov., holotype, NHMUK 20191114 (same as Figure 6); e,f: Bensonella lakainguta Hwang, 2014, HNHM 105323 (same as Figure 7(d)); g, h: Bensonella lakainguta, NHMUK 201901108 (same as Figure 8). All images: B. Páll-Gergely.