holostomata definition

  • noun-plural:
    • An artificial division of gastropods, including those that have a complete aperture.
  • others:
    • A division of pectinibranchiate gastropodous mollusks, with shells obtaining the mouth whole, rather than notched or extended into a siphon: against Siphonostomata.
    • In Infusoria, same as Pantostomata.
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