Entomostraca
昆甲類
En·to·mos·tra·ca n. pl. Zoöl. One of the subclasses of Crustacea, including a large number of species, many of them minute. The group embraces several orders; as the Phyllopoda, Ostracoda, Copepoda, and Pectostraca. See Copepoda, Phyllopoda, and Cladocera.
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Entomostraca
n : in some older classifications includes the Branchiopoda and
Copepoda and Ostracoda and Cirripedia; no longer in
technical use [syn: subclass Entomostraca]