Percnon

Percnon is a genus of crabs in the family Percnidae. It has also been included in the family Plagusiidae as subfamily Percninae.

Species
Seven extant species are recognised:
 * Percnon abbreviatum (Dana, 1851)
 * Percnon affine (Milne-Edwards, 1853)
 * Percnon gibbesi (Milne-Edwards, 1853)
 * Percnon guinotae Crosnier, 1965
 * Percnon pascuensis Retamal, 2002
 * Percnon planissimum (Herbst, 1804)
 * Percnon sinense Chen, 1977

There are two species only known from fossils:
 * †Percnon paleogenicus De Angeli, 2023
 * †Percnon santurbanensis Ceccon & De Angeli, 2019