Kingdom Animalia Phylum Mollusca Rank Order | Scientific name Myoida Higher classification Bivalvia Subclass Heterodonta | |
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Mass Pacific geoduck: 0.5 – 1.5 kg Lower classifications Pholadidae, Shipworms, Panopea, Mya, Hiatellidae | ||
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.
Contents
Description
These are burrowing molluscs, with well-developed siphons. The shell is relatively soft, and lacks a nacreous layer. Some species have a single cardinal tooth.
Superfamilies and families
Superfamilies and families within the Myoida include:
References
Myoida Wikipedia(Text) CC BY-SA