Phylum Arthropoda Subphylum Crustacea Class Maxillopoda Sublass Ostracoda Number of families 46
Generally small crustaceans with reduced body entirely enclosed within an often-calcified bivalved carapace
Photo: Members of Herpetocypris reptans, like all ostracods, have bilaterally symmetrical bodies. (Photo by Hubert Kranemann/OKAPIA/Photo Researchers, Inc. Reproduced by permission.)
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