Grapsid-crab
Guides
Pachygrapsus
shore crabs, lined shore crabs
Pachygrapsus is a genus of small shore crabs in the family Grapsidae. The genus comprises approximately 14 species distributed across coastal regions, with Pachygrapsus crassipes (lined shore crab) being among the best-studied members. Recent genetic data suggest the genus may be polyphyletic, indicating potential taxonomic revision. Species in this genus occupy intertidal habitats and exhibit complex behavioral adaptations for life in dynamic coastal environments.