Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes



Infraorder Brachyura - True Crabs

Phylum Arthropoda - Arthropods
Subphylum Crustacea - Crustaceans
Class Malacostraca - Malacostracans
Superorder Eucarida - Eucarida (Crabs, Crayfish, Shrimp, etc.)
Order Decapoda - Crabs, Crayfishes, Lobsters, Prawns, and Shrimp
Infraorder Brachyura - True Crabs

Family Calappidae - Box crabs
Family Cancridae - Rock Crabs
Family Epialtidae - Kelp Crabs and Spider Crabs
Family Gecarcinidae - Land Crabs
Family Grapsidae - Marsh Crabs, Shore Crabs, and Talon Crabs
Family Hepatidae
Family Inachidae
Family Leucosiidae
Family Ocypodidae - Fiddler Crabs and Ghost Crabs
Family Panopeidae
Family Pilumnidae
Family Pinnotheridae - Pea Crabs
Family Portunidae - Swimming Crabs
Family Sesarmidae
Family Ucididae
Family Xanthidae - Mud Crabs