Clostophis lacrima ( Páll-Gergely & Hunyadi, 2015 )

Páll-Gergely, Barna & Hunyadi, András, 2022, New and little-known species of Clostophis Benson, 1860 from Southeast Asia (Gastropoda: Eupulmonata: Hypselostomatidae), Raffles Bulletin of Zoology 70, pp. 417-439 : 434

Clostophis lacrima ( Páll-Gergely & Hunyadi, 2015)

( Figs. 15 , 16 )

Hypselostoma lacrima Páll-Gergely & Hunyadi, 2015 (in PállGergely et al., 2015): 45, figs. 6, 8F–K.

Material examined. 2 shells (coll. HA), Vietnam, Lạng SƠn Province, H ữu Lũng District , H ữu Liên, 1,400 m west from Đȏng Lâm along road no. 241, 21°41.91′N, 106°21.77′E ,

210 m a.s.l. (locality code: 2020/53), coll. A. Hunyadi, 19 February 2020.

Measurements (in mm). SW = 1.28–1.29, H: 1.35–1.36 (n = 6).

Remarks. This species, due to its colourless shell and dense spiral striation is transferred to the genus Clostophis .

This species was described from the Chinese Guangxi Province, ca. 105 km northeast from the new Vietnamese locality. The Vietnamese shells are slightly smaller (measurements of the Chinese shells are SW = 1.34–1.35, SH = 1.33–1.35) and their palatal fold is straight, whereas the Chinese specimens’ palatal fold is slightly angled. These differences, however, do not justify their distinction as a separate species.

Figures

Fig. 15. Clostophis lacrima (Páll-Gergely & Hunyadi, 2015), from locality 2020/53.

Fig. 16. Clostophis lacrima (Páll-Gergely & Hunyadi, 2015), from locality 2020/53. A, B, specimen 1; C, D, specimen 2.