Crustacean - Aquatic, Arthropod, Exoskeleton: The sexes are usually separate in crustaceans , but some are parthenogenetic, and others are hermaphrodites; differences between the sexes can be extreme. The most typical larva is called a nauplius. Crustaceans play many roles in aquatic ecosystems. The basic crustacean body consists of somites, acron, telson, appendages, carapace, and an exoskeleton. Most crustaceans have exoskeletons and live in freshwater or saltwater environments. Let's look at 15 examples of crustaceans . Information about crustaceans in Australia including their biology, anatomy, behaviour, reproduction, predators, prey and ecology. Crustaceans belong to the subphylum Crustacea and form a large, diverse group of arthropods. This include decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, opossum shrimps, amphipods and mantis shrimp.
