superfamily

True Mussels

Mytiloidea

Field notes

Mytiloidea are a superfamily of small to large saltwater mussels, marine bivalve molluscs in the order Mytilida.

Mytiloidea contains two families, Mysideiellidae, which is known only from fossils and Mytilidae, which has living representatives.

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

Native to the US, by observations.