Rivularia (gastropod)

Rivularia is a monotypic genus of freshwater snails with a gill and an operculum, aquatic gastropod mollusks in the family Viviparidae. Species in this genus is distributed only along the Xiang River region of Hunan province, People's Republic of China.

Taxonomy

This genus was originally placed under the subfamily Bellamyinae of Viviparidae. In 2017, it was moved to Viviparinae based on anatomical and genetic data.

Species

, WoRMS only recognize one species in this genus, namely Rivularia auriculata, the type species of this genus. The original combination is this species was Paludina auriculata.
A number of species inquirenda have been assigned to this genus, but none have so far been accepted:Rivularia bicarinataRivularia calcarataRivularia glandina Rivularia globosa Rivularia ovum

''Rivularia subelliptica''

Description

Rivularia auriculata grows to about. The shell is thick and has about 4.5 whorls. The shape is oval to subglobose. It is usually smooth and olive-yellow in colour, typically without bands.