Hypselostoma depressum Gojšina & Hunyadi & Sutcharit & Tongkerd & Auffenberg & Grego & Vermeulen & Reischütz & Páll-Gergely 2025, comb. nov.

Hypselostoma depressum (Vermeulen, Luu, Theary & Anker, 2019) comb. nov. Figs 111 N, 129, 182 Anauchen depressus Vermeulen et al., 2019: 35–37, figs 60–63. Anauchen depressus — Sutcharit et al. 2023: 1290. Type material examined. Cambodia • holotype; NHMUK 20180574. Type locality. “ Cambodia: Kampot Province, Kampot area: Phnom La’Ang, cave with shrine at its entrance, first chamber with collapsed roof … southeast end … ”. Differential diagnosis. This species differs from H. chaunosalpinx by the keeled last whorl and less numerous apertural barriers, none of which are hooked. The umbilicus is also wider in H. chaunosalpinx. See also under H. taehwani. Distribution. This species is known only from the type locality. Remarks. The type locality of this species was inaccessible during collecting efforts in 2023 due to the restricted access and the presence of concrete walls around the locality. This indicates that the species could be seriously threatened by quarrying.