Rhodeus sciosemus is a subtropical freshwater ray-finned fish belonging to the family Acheilognathidae, the bitterlings.

[1] It originates in inland rivers in Japan.

It was originally described as Acanthorhodeus sciosemus by Jordan & Thompson in 1914.

When spawning, the females deposit their eggs inside bivalves, where they hatch and the young remain until they can swim.

This Acheilognathinae article is a stub.