Myida

Myida (formerly Myoida) is an order of saltwater clams, marine bivalve molluscs in the subclass Heterodonta. The order includes such bivalves as soft-shell clams, geoducks and shipworms.

Myida
A live individual of the soft-shelled clam, Mya arenaria
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Heterodonta
Infraclass: Euheterodonta
Superorder: Imparidentia
Order: Myida
Stoliczka, 1870
Superfamilies and families

See text

Synonyms

Myoida

Description

They are burrowing molluscs with well-developed siphons. The shell is relatively soft and lacks a nacreous layer. Some species have a single cardinal tooth.[1]

Superfamilies and families

Superfamilies and families within the Myida include:[2]

  • Superfamily: Dreissenoidea
  • Superfamily: Myoidea
    • Family: Corbulidae
    • Family: Myidae
    • Family: †Pleurodesmatidae
    • Family: †Raetomyidae
  • Superfamily: Pholadoidea
  • Superfamily: †Pleuromyoidea
    • Family: †Ceratomyidae
    • Family: †Pleuromyidae
    • Family: †Vacunellidae
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References
  1. Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 431. ISBN 0-03-056747-5.
  2. "WoRMS - World Register of Marine Species - Myida". www.marinespecies.org. Retrieved 2019-04-03.


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