Realia cotulata Mousson, 1870[1] Omphalotropis costulata is a species of small salt marsh snail with an operculum, a terrestrial gastropod mollusk, or micromollusk, in the family Assimineidae.

The distribution of Omphalotropis costulata includes Fiji.

The type locality is Vanua Balavu.

[1] Omphalotropis costulata Emberton & Pearce, 1999 is a junior homonym for yet (2012) unnamed species Omphalotropis sp.

This Assimineidae-related article is a stub.