Diplommatina triangulata Yen, 1939

Diplommatina triangulata Yen, 1939: 33, pl. 2, fig. 56.

Type material.

Holotype SMF 39672 (Figs 7 I, 13 I).

Type locality.

“ Mang-hao, Yünnan ” [Manghao, Yunnan Province].

Brief description.

Shell dextral, with about 7 whorls. Protoconch smooth. Penultimate whorl expanded. Constriction at slightly right of parietal wall. Teleoconch with strong, widely-spaced, radial ribs; ca. 4 ribs per 0.5 mm on both penultimate and body whorls. Dorsal fold absent. Umbilicus unknown. Double lip present. Columellar tooth present. One strong horizontal palatalis just above columella. One short vertical palatalis.

Remarks.

The holotype was figured by Yen (1939).