Shell rounded-ovate, elevated, yellowish-white, solid, anterior slope very short, slightly convex, posterior slope very convex, side slopes moderately convex, apex rather blunt, slightly eroded, consequently without sculpture, placed of about 1/8 of the total length. Sculpture consisting of rather flat concentric lirae, which are considerably broader than the interstices, which on some parts have the character of mere striae. They are crossed by radiating striae, which are however rather obscure, probably on account of the somewhat worn state of the shell. Margin rather thick with the sides raised, though less than in the preceding species. Inside smooth, yellowish, with a large white central area.
Long. 8,5 mm, lat. 7,2 mm. , alt. 5 mm.

Differing from the known species by the more anterior position of the apex, the smoother sculpture, the height of the shell etc. I have located it in the genus Pectinodonta, on account of the same considerations as for P. orientalis, as far as concerns the shell, but I must admit, that with such limpet-like species, certainly is only to be obtained by anatomical characters.

Indonesia. Timor. Western entrance Samau Strait.