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For Insects, Spiders & Their Kin
For the United States & Canada
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Infraorder Anomura - Hermit Crabs and Mole 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 Anomura - Hermit Crabs and Mole Crabs

Superfamily Galatheoidea
Family Munididae - Squat Lobsters
Genus Pleuroncodes
Species planipes - Red Crab
Family Porcellanidae - Porcelain Crabs
Genus Euceramus
Species praelongus - Euceramus praelongus
Genus Petrolisthes
Species eriomerus - Petrolisthes eriomerus
Species armatus - Green Porcelain Crab
Genus Polyonyx
Species gibbesi - Polyonyx gibbesi
Genus Pachycheles
Species rudis - Pachycheles rudis
Superfamily Hippoidea
Family Hippidae - Mole Crabs
Genus Emerita
Species analoga - Pacific Mole Crab
Species talpoida - Atlantic Mole Crab
Superfamily Paguroidea - Hermit Crabs
Family Lithodidae
Genus Paralithodes
Species rathbuni - Spiny King Crab
Genus Cryptolithodes
Species sitchensis - Cryptolithodes sitchensis
Family Diogenidae
Genus Clibanarius
Species vittatus - Thinstripe Hermit Crab
Genus Petrochirus
Species diogenes - Petrochirus diogenes
Family Paguridae
Genus Pagurus
Species acadianus - Pagurus acadianus
Species annulipes - Pagurus annulipes
Species grainosinanus - Grainyhand Hermit Crab
Species hirsutiusculus - Hairy Hermit Crab
Species longicarpus - Long-Clawed Hermit Crab
Species pollicaris - Flat-clawed Hermit Crab
Species samuelis - Blueband Hermit Crab
Family Coenobitidae
Genus Coenobita
Species clypeatus - Caribbean hermit crab