This is a list of significant crustaceans, which are members of the subphylum Crustacea. They are grouped taxonomically by class, with notable members of each class ordered alphabetically.

Dec 28, 2025 · Crustacean - Arthropod, Aquatic, Decapod: Crustaceans have two pairs of sensory appendages in front of the mouth and 3 pairs of jaws behind the mouth; most are aquatic.

Dec 28, 2025 · Crabs, lobsters, shrimps, and wood lice are among the best-known crustaceans, but the group also includes an enormous variety of other forms without popular names.

Crustaceans are a group of invertebrate animals consisting of some 45,000 species worldwide. Crabs, lobsters, and shrimps are all counted among the subphylum Crustacea.

Dec 3, 2025 · decapod, (order Decapoda), any of more than 8,000 species of crustaceans (phylum Arthropoda) that include shrimp, lobsters, crayfish, hermit crabs, and crabs. The presence of five …

Along with the insects and vertebrates, mollusks are one of the most diverse groups in the animal kingdom, with nearly 100,000 (possibly as many as 150,000) described species.

People around the world eat many types of crustacean—for example, crabs, lobsters, shrimps (or prawns), and crayfish. Barnacles, water fleas, and pill bugs are also crustaceans.

Certain gastropod mollusks, such as abalone, whelk, and conch, are also marketed. The main crustacean forms caught and eaten are the shrimp and prawns of the genera Crangon and …

Dec 29, 2025 · Their relationships both within the phylum and with other animal phyla are uncertain. Phylum Arthropoda consists of the subphyla Chelicerata, Crustacea, Myriapoda, Hexapoda, and the …

Dec 28, 2025 · 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, …