pectostraca definition

  • noun-plural:
    • A degenerate order of Crustacea, including the Rhizocephala and Cirripedia.
  • noun:
    • Huxley's name of a division of entomostracous crustaceans, comprising the Cirripedia right and Rhizocephala: synonymous with the class Cirripedia in a regular feeling.
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