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crustacea    
n. 甲壳类

甲壳类

Crustacea
n 1: class of mandibulate arthropods including: lobsters; crabs;
shrimps; woodlice; barnacles; decapods; water fleas [synonym:
{Crustacea}, {class Crustacea}]


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  • Crustacean - Wikipedia
    Crustaceans (from Latin word "crustacea" meaning: "those with shells" or "crusted ones") are mandibulate arthropods that are traditionally a part of the paraphyletic subphylum Crustacea ( krəˈsteɪʃə )
  • Crustacean - Definition, Types, List, Anatomy, and Picture
    Crustaceans are mainly a group of free-living aquatic arthropods that belong to the subphylum Crustacea 1 This subphylum includes prawns, crabs, lobsters, shrimp, krill, barnacles, and seed shrimp, among others
  • Definition, Characteristics, Evolution, Facts - Britannica
    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
  • Crustacea (shrimps, crabs, lobsters, water fleas, and relatives . . . - ADW
    Approximately 30,000 species make up this Subphylum Most are aquatic; of these, the majority are marine but some are found in fresh water Members of the Subphylum include lobsters, crabs, crayfish, shrimp, copepods, barnacles, and several other groups of organisms
  • Crustacean - Simple English Wikipedia, the free encyclopedia
    Crustaceans include crabs, lobsters, crayfish, shrimp, krill and barnacles They are relatives of insects If the Arthropods are regarded as a superphylum, then the insects and crustacea would be phyla (see List of animal phyla) The group has an extensive fossil record, reaching back to the Cambrian Most crustaceans are aquatic, mostly marine
  • Types of Crustaceans with their Pictures
    Crustaceans are a large group of animals that live mostly in water and have jointed legs, hard outer shells, and many legs These creatures come in many shapes and sizes and belong to a group called arthropods Some swim, some crawl, and many are important in oceans, rivers, and even on dinner plates
  • Crustacean - New World Encyclopedia
    Crustaceans (subphylum Crustacea) comprise the group of arthropods (phylum Arthropoda) that includes the familiar crabs, lobsters, shrimps, barnacles, copepods, krill, water fleas, and crayfish
  • What Are Crustaceans? Definition, Traits Facts - ScienceInsights
    Crustaceans belong to the subphylum Crustacea within the phylum Arthropoda That places them alongside insects, arachnids, and myriapods (centipedes and millipedes) as fellow arthropods, all sharing the signature traits of an external skeleton and jointed legs
  • Crustacean - Anatomy, Adaptations, Diversity | Britannica
    The fossil record, although fairly rich, has not solved any of the questions about the early evolution of the Crustacea The earliest of the definite fossil crustaceans are ostracods, a relatively specialized group
  • 15 Examples of Crustaceans (With Pictures) - Wildlife Informer
    Crustaceans have hard exteriors (or exoskeletons) and segmented bodies They are part of the larger group of arthropod animals However, they are distinct from other arthropods due to their two pairs of antennae or feelers and jointed legs splitting into two branches, also known as biramous legs





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