Ostreidae

family of molluscs

Ostreidae are the true oysters. The family includes most species eaten under the name oyster. Pearl oysters are not true oysters because they belong to a different order, the Pterioida.

True Oysters
Pacific oyster, Crassostrea gigas
Scientific classification
Kingdom:
Phylum:
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Family:
Ostreidae

Like scallops, true oysters have a central adductor muscle. This causes a scar in the middle of the shell. It is the point of attachment. The shell is often irregular because oysters attach to substrates.

Other websites change

  Data related to Ostreidae at Wikispecies
  Media related to Ostreidae at Wikimedia Commons