Crustaceans {crustacean}| (Crustacea) are aquatic and live mostly in ocean. They have one mandible pair, have two maxillae pairs, respire by gills, and molt. They have compound eyes. They have two antenna pairs. Shrimp, crayfish, lobster, and crab have ten legs and can have carapace. Barnacles, water fleas, and krill have six or eight legs. Copilia has two eye lenses, for close vision. Vargula firefleas make intense light.
Biological Sciences>Zoology>Kinds>Arthropod>Crustacean
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Date Modified: 2022.0224