| Mytilidae (sea mussels) |
| 12 cm TL (male/unsexed) |
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benthic; brackish; marine; depth range 0 - 20 m |
| Western Atlantic and Eastern Pacific. |
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| Western Central Atlantic; Northwest Atlantic: Canada to northeastern Florida; Gulf of Mexico; introduced to California. 8 cm, total length. It lives attached to hard substrates intertidally or at shallow subtidal depths. Diagnostic features: Shell mussel-shaped, thin but strong. Shell margins crenulated. Sculpture of strong, numerous, bifurcating radial ribs, weaker on anteroventral area. Hinge teeth absent. Colour: externally variable, usually yellowish brown, greenish brown, or dark brown, internally bluish white with posterior end (rounded area) purplish (Ref. 271). Maximum depth range based on its ecology; to be replaced with a better reference. |
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Not Evaluated (N.E.) Ref. 123251)
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