Gemmula (Pinguigemmula) thielei Finlay, 1930

(Pl. 2, fig. 3)

Gemmula thielei Finlay, 1930: 47 .

Pinguigemmula thielei . — Powell 1964: 279, pl. 215, fig. 7; Kosuge 1986, pl. 30, figs. 7–9 Length Width Aperture W/L A/L 42.2 16.9 26.5 0.40 0.63 Distribution. South China Sea; off west coast of Sumatra, Indonesia.

Remarks. This species is very similar to Gemmula philippinensis Powell, 1964 . Powell (1964) indicated that “this species differs from G. philippinensis in having two instead of three spiral keels in addition to the peripheral flange-like keel, and in G. thielei (Finlay, 1930) only the peripheral keel is gemmate, whereas in G. philippinensis all four keels are gemmate”. The only one specimen collected from the South China Sea has two spiral keels.