Natantia
plural noun
Na·tan·tia
nəˈtanchə
: 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
Word History
Etymology
New Latin, from Latin, neuter plural of natant-, natans, present participle of natare