Geosesarma rouxi is a species of small, semi-terrestrial freshwater crabs native to Java, Indonesia.

[1][2] They are commonly known in the pet trade as rainbow vampire crabs.

[2] Adult G. rouxi can reach 2 inches in size, with a yellow and light blue carapace and dark red legs.

This Eubrachyura article is a stub.

You can help Wikipedia by expanding it.