Reptantia
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Rep·tan·tia | \ repˈtanch(ē)ə, -ntēə \
Definition of Reptantia
: a suborder of decapod crustaceans comprising lobsters, crabs, hermit crabs, and related forms and having no stylocerite, the abdomen well developed to greatly reduced and frequently depressed but never laterally compressed, the rostrum reduced or absent and usually depressed if present, and the second antennal scale reduced or absent
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