Crustacean - Wikipedia
网页Crustaceans (from Latin meaning: "those with shells" or "crusted ones") are invertebrate animals that constitute one group of arthropods that are a part of the subphylum Crustacea (/ krəˈsteɪʃə /), a large, diverse group of mainly aquatic arthropods including decapods (shrimps, prawns, crabs, lobsters and crayfish), seed shrimp, branchiopods, fi...
Crustacean | Definition, Characteristics, Evolution, & Facts
网页2024年9月24日 · crustacean, any member of the subphylum Crustacea (phylum Arthropoda), a group of invertebrate animals consisting of some 45,000 species distributed worldwide. 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.
Crustacean Definition & Meaning - Merriam-Webster
网页The meaning of CRUSTACEAN is 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.
Crustaceans: Species, Characteristics, and Diet - ThoughtCo
网页2019年12月13日 · The crustaceans are a group of marine life that includes crabs, lobsters, and shrimp. Learn more with this collection of crustacean facts.
Crustacean - Anatomy, Adaptations, Diversity | Britannica
网页2024年9月24日 · Crustacean - Anatomy, Adaptations, Diversity: The crustacean nervous system consists of a brain connected to a nerve cord of ganglia. The most conspicuous sense organs are the compound eyes. The digestive tract is usually direct in its passage through the body, and the antennal and maxillary glands are the two different excretory …
Characteristics of crustaceans | Britannica
网页crustacean , Any member of the 45,000 arthropod species in the subphylum Crustacea. Distributed worldwide, crustaceans are distinguished by having two pairs of antenna-like appendages in front of the mouth and other paired appendages near …
Crustacean Definition & Meaning | Britannica Dictionary
网页CRUSTACEAN meaning: a type of animal (such as a crab or lobster) that has several pairs of legs and a body made up of sections that are covered in a hard outer shell.
What is a Crustacean? - WorldAtlas
网页2018年6月20日 · A crustacean is an organism that belongs to the Kingdom Animalia, Phylum Arthropoda, and in the class Crustacea. There are over 67,000 species belonging to this class. Some of the most notable examples include: Lobsters. Woodlice. Krill. Shrimp. Barnacles. Crayfish. Crabs. Characteristics and Structures.
Crustaceans - Encyclopedia of Life
网页The Crusty Ones. The Latin root, crustaceus, "having a crust or shell," really doesn’t entirely narrow it down to crustaceans. They belong to the phylum Arthropoda, as do insects, arachnids, and many other groups; all arthropods have hard exoskeletons or shells, segmented bodies, and jointed limbs.
What Is A Crustacean? The Ultimate Guide To Crustaceans
网页2019年11月25日 · A crustacean is an invertebrate animal with a hard exoskeleton, segmented body and jointed legs. Most crustaceans are fully aquatic , although some, including many crabs , are semi-aquatic , and others, such as woodlice , are fully terrestrial (land-dwelling).