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单词 Chelicerata
释义

Chelicerata

/kəˌlɪsəˈreɪtə /
plural noun Zoology
A large group of arthropods that comprises the arachnids, sea spiders, and horseshoe crabs. They lack antennae, but possess a pair of chelicerae, a pair of pedipalps, and (typically) four pairs of legs.
  • Subphylum Chelicerata, phylum Arthropoda.
Arthropods have traditionally been divided into four classes: Trilobita, Chelicerata, Crustacea, and Uniramia....
  • One of these pairs is expected to be the homologue to the chelicerae of the Chelicerata.
  • Generations of morphologists have been unable to determine the branching order of Chelicerata, Myriapoda, Crustacea and Insecta.

Origin

Modern Latin (plural), from Greek khēlē 'claw' + keras 'horn'.

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更新时间:2024/12/24 3:13:18