Genus Carinartemis Siriboon & Panha, 2014

Carinartemis Siriboon & Panha in Siriboon et al. 2014b: 166-168.

Type species.

Carinartemis vesperus Siriboon & Panha, 2014 by original designation.

Diagnosis.

Shell obliquely heliciform and with conical spire. Penultimate whorl keeled and extended beyond the diameter of the last whorl. Last whorl rounded to shouldered and strongly axially deflected. Aperture semi-ovate to subcircular; apertural dentition with or without one or two parietal lamellae. Genitalia with thin to thick penial sheath that covers entire penis length; penial hooks and vaginal hooks may be present.

Remarks.

The genus is comprised of two endemic species occurring in limestone outcrops in western Thailand. A recent phylogenetic study revealed that the previously recognized Haploptychius petitii (Gould, 1844) and Indoartemon medius Siriboon & Panha, 2014 are clustered with members of the Carinartemis (see Siriboon et al. 2020) with strong support. Siriboon et al. (2020) suggested reassigning these two species into Carinartemis . Therefore, based on this phylogenetic result, the previously recognized H. petitii is relocated here under the genus Carinartemis .