Family Marsh Crabs, Shore Crabs, and Talon Crabs (Grapsidae)
Grapsidae is a family in the order Decapoda. Browse 7 named species recorded in this family, or open an individual profile for its available identification and natural-history information.
Species in Grapsidae (7)
Purple Shore Crab
Hemigrapsus nudus
Identification: dorsal shell (carapace) is generally a dark purple in color, although it may be olive green or red, with white or cream markings. The color of the legs matches the color of the carapace but the white-tipped claws (chelipeds) are a lig
Japanese Shore Crab
Hemigrapsus sanguineus
Often found with another invasive species, Carcinus maenas .
Striped Shore Crab
Pachygrapsus crassipes
Identification: According to this website , this species is unique among grapsids in having transverse lines on its carapace and two teeth rather than three on the anterolateral margin of its carapace.
Mangrove Root Crab
Goniopsis cruentata
Sally Lightfoot Crab
Grapsus grapsus
Green Shore Crab
Hemigrapsus oregonensis
Mottled Shore Crab
Pachygrapsus transversus