WBithynia walkeri is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Bithyniidae. It is only known from two artificial reservoirs in Suphan Buri Province.
WBrotia armata is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Pachychilidae.
WCerithium ophioderma is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.
WConasprella bajanensis is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
WConus bengalensis, common name the Bengal cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
WConus poormani, common name the Poorman's cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.
WDanilia kuroshio is a species of sea snail, a marine gastropod mollusk in the family Chilodontidae.
WEubranchus mandapamensis is a species of sea slug or nudibranch, a marine gastropod mollusc in the family Eubranchidae.
WFlabellina engeli is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusc in the family Flabellinidae.
WPerotrochus atlanticus is a species of sea snail, a marine gastropod mollusk in the family Pleurotomariidae.
WTrapania pallida is a species of sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Goniodorididae.
WWattebledia baschi is a species of freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Bithyniidae.