What is a crustacean simple definition?
: any of a large class (Crustacea) of mostly aquatic mandibulate arthropods that have a chitinous or calcareous and chitinous exoskeleton, a pair of often much modified appendages on each segment, and two pairs of antennae and that include the lobsters, shrimp, crabs, wood lice, water fleas, and barnacles.
What classification is a crustacean?
What does crustacean literally mean?
A crustacean is a member of a class of arthropods that live in water. If you think of a crust as being a little like a shell, that can help you remember crustaceans are essentially critters that have shells. Our word crust is from Latin crusta (shell or crust).
How many legs does a crustacean have?
What is another word for crustacean?
How do you classify arthropods?
All arthropods posses an exoskeleton, bi-lateral symmetry, jointed appendages, segmented bodies, and specialized appendages. The major arthropod classes can be separated by comparing their number of body regions, legs, and antennae.
What is a crustacean allergy?
Overview. Shellfish allergy is an abnormal response by the body’s immune system to proteins in certain marine animals. Marine animals in the shellfish category include crustaceans and mollusks, such as shrimp, crab, lobster, squid, oysters, scallops and others.
What does crustacean mean in Latin?
Crustacea (n.) arthropod class, 1814, Modern Latin neuter plural of crustaceus (animalia), literally “having a crust or shell,” from Latin crusta “crust, rind, bark, hard shell” (from PIE root *kreus- “to begin to freeze, form a crust;” also see -a (2)).
Do crustaceans have 10 legs?
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 pairs of thoracic legs (pereiopods) is the basis for the name decapod (from the Greek meaning “10 legs”).