Laeocathaica leucorhaphe Moellendorff, 1899

Fig. 19A

Laeocathaica leucorhaphe Möllendorff, 1899: 95, pl. 6, fig. 2; - Gude 1902: 6; - Yen 1939: 149, pl. 15, fig. 36; - Chen and Zhang 2004: 323, fig. 312; - Páll-Gergely et al. 2022: 63, fig. 18B.

Cathaica leucorhaphe - Yen, 1938: 446.

Laeocathaica (Laeocathaica) leucorhaphe - Zilch 1968: 174; - Richardson 1983: 78.

Museum material.

SMF 9073, lectotype; Sm Tung-ho [铜河 = Daduhe River 大渡河], W-Sytshuan; ex Potanin 312b, Slg. O. v. Möllendorff .

Distribution.

W Sichuan (type locality: Daduhe River).

Additional information of shell.

The protoconch is finely granulate. Growth lines are indistinct. Spiral grooves are only more distinct on umbilicus side near aperture. Bottom-umbilicus transition changes gently. Peristome is somewhat sinuate.