plural noun
Na·​tan·​tia | \ nəˈtanchə\

Definition of Natantia

: a suborder of Decapoda comprising crustaceans (as the shrimps, prawns, and related forms) that have the rostrum usually long, the first antenna with a stylocerite, the second antennal scale larger, and the abdomen well-developed, somewhat compressed laterally, and frequently flexed ventrally — compare reptantia

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History and Etymology for Natantia

New Latin, from Latin, neuter plural of natant-, natans, present participle of natare

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