Margarya bicostata is a species of large operculate freshwater snail, an aquatic gastropod mollusk in the family Viviparidae, the river snails.

The distribution of Margarya bicostata includes Fuxian Lake in Yunnan Province, China.

[1] Former distribution also included Dian Lake.

This Viviparidae-related article is a stub.

You can help Wikipedia by expanding it.