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For Insects, Spiders & Their Kin
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Subphylum Crustacea - Crustaceans

Roly Poly - Armadillidium vulgare crayfish - Orconectes virilis Mangrove Tree Crab - Aratus pisonii Orconectes big woodlouse, mottled orange and black - Trachelipus rathkii Unknown Crab - Carcinus maenas - male Woodlice sp. - Oniscus asellus Tidal zone Amphipod
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Explanation of Names
Author: BrĂ¼nnich, 1772
Internet References
University of Berkeley. Introduction to the Crustaceamorpha.