Discartemon lemyrei (Morlet, 1883)

Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben & Panha, Somsak, 2014, Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae), ZooKeys 401, pp. 45-107 : 75

18. Discartemon lemyrei (Morlet, 1883) Figs 8A, 23

Streptaxis lemyrei Morlet, 1883: 104, 105, pl. 4, fig. 1. Type locality: Kampot, Cambodge. Tryon 1885: 67, pl. 16, figs 12, 13. Morlet 1889: 122. Gude 1903: 227.

Odontartemon (Discartemon) lemyrei - Kobelt 1906: 98, pl. 55, figs 13, 14. Kobelt 1910: 150.

Discartemon lemyrei - Benthem Jutting 1954: 79. Benthem Jutting 1959: 168. Richardson 1988: 183.

Material examined.

Holotype MNHN (Fig. 8A).

Remarks.

Shell globose-heliciform, spire elevated conical with distinct suture; following whorls regularly coiled. Shell surface with transverse ridges; last whorl rounded, regularly expanded; umbilicus unusually narrow. Aperture sub-quadrangular; peristome thickened, expanded and reflected. Apertural dentition with only one parietal lamella.

This species is very superficially similar to Discartemon roebeleni and Discartemon collingei , but has a larger shell with higher spire, unusually narrow umbilicus, and larger aperture with only a parietal lamella. In addition, the three species are allopatric, with Discartemon lemyrei occurring in Kampot and Panompen of Cambodia, while Discartemon roebeleni and Discartemon collingei occur in southern Thailand and peninsular Malaysia.