The largest class of crustaceans, with a body typically divided into a head, a thorax bearing walking legs, and a segmented abdomen. Malacostraca includes crabs, lobsters, shrimp, crayfish and the terrestrial woodlice, and dominates crustacean diversity in both marine and freshwater environments.
Facts
Disputed
Member Species/Taxa CountApproximate described-species (or, for a genus, described-taxon) count; continually revised as species are newly described, reclassified or synonymized. Taxonomic Rank Scientific Name Connections
Sources
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