Trichocathaica foliosquama Wu, 2001

Pall-Gergely, Barna, unyadi, Andras & Asami, Takahiro, 2018, Enantiomorphs and taxonomy of three conchological species in flat-shelled snails Trichocathaica (Pulmonata, Camaenidae), ZooKeys 810, pp. 19-44 : 28-29

Trichocathaica foliosquama Wu, 2001

Trichocathaica foliosquama Wu, 2001: 294, figs 5-13.

Type locality.

Lijiexiang, Zhouqu County (33.8N, 104.3E), Gansu Province.

Description

(based on the original description and photos). Shell sinistral, spire slightly elevated, body whorl rounded with a very slight indication of a blunt keel; protoconch consists of 1.55-1.75 whorls, finely granulose; entire shell with 5-5.38 whorls; teleoconch roughly, irregularly wrinkled, with large scales, each scale with 2 or 3 lamellae around 1 central ridge; aperture subcircular, peristome slightly expanded, thin, sharp; inner thickening parallel to peristome situated in some distance from peristome edge.

Measurements

(in mm, based on the original description). D = 17.03-18.48, H = 9.33-10.35.

Distribution.

This species is known from the type locality only.

Remarks.

We did not examine specimens of this species. It can be distinguished from the other species by the narrow umbilicus and the morphology of periostracal folds, described as "shell surface scaly, and each scale with 2-3 lamellae around 1 central ridge" ( Wu 2001).