copepoda

‖n. pl. [ NL., from Gr. &unr_; an oar + -poda. ] (Zool.) An order of Entomostraca, including many minute Crustacea, both fresh-water and marine. [ 1913 Webster ]

☞ They have a distinct carapace. The eggs are carried in a pair of external pouches. Some are parasites of fishes. [ 1913 Webster ]