The Sesarmidae are a family of crabs, previously included in the Grapsidae by many authors. Several species, namely in Geosesarma, Metopaulias, and Sesarma, are true terrestrial crabs. They do not nee

Aratus is a neotropical genus of tree-climbing mangrove crabs in the serarmid family. The genus was first described by Henri Milne-Edwards in 1853, by separating A. pisonii into its own monotypic genu