Hypselostoma rupestre van Benthem Jutting 1962

Hypselostoma rupestre van Benthem Jutting, 1962 Hypselostoma rupestre van Benthem Jutting, 1962: 6–8, fig. 3. Hypselostoma rupestre — Schileyko 2011: 3–4; Vermeulen et al. 2019: 40. Material examined. Cambodia • 32 shells; Kampot Province, Kampong Trach district, Phnom Teuk Thom (northwest from Wat Aranhatry); 10°26.335'N, 104°28.822'E; 400 m a. s. l.; 21 Oct. 2023; A. Hunyadi, T. Ishibe, K. Okubo, J. U. Otani leg.; coll. HA. Type locality. “ Nui Hon Chong (Cap de la Table), à 32 km au S. - E. de Hatien, Sud Vietnam ”. Differential diagnosis. This species differs from H. cambodjense by its rounded whorls. It is thus superficially more similar to H. dilatatum but the latter has several hooked apertural barriers (they are all blunt in H. rupestre). Distribution. This species in known from several localities in Kien Giang province (Vietnam). We have also found this species in Kampot province, Cambodia (see under Material examined).