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单词 Cladocera
释义

Cladocera

/kləˈdɒs(ə)rə /
plural noun Zoology
An order of minute branchiopod crustaceans which includes the water fleas. They typically have a transparent shell enclosing the trunk, and large antennae which are used for swimming.As a juvenile, Pomoxis nigromaculatus feeds mainly on microscopic prey such as Cyclops, Cladocera, and Daphnia....
  • Daphnia are freshwater crustaceans in the order Cladocera that are known to have four expansion segments in the 18S rRNA gene.
  • In the chapter on the Cladocera, Smith does not address the much-discussed question of whether this Order really is a valid monophyletic group.

Origin

Modern Latin (plural), from Greek klados 'branch or root' + keras 'horn' (because of the branched antennae).

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更新时间:2024/9/21 22:58:51