
Blue Mussel - Mytilus edulis
The shape of the shell is somewhat triangular and elongate with rounded edges. The shell has fine, concentric growth lines but no radiating ribs. The shells of this species are purple, blue or sometimes brown in color, occasionally with radial stripes.
Habitat: Intertidal zone - the shell had been pried open and the mussel eaten, most likely by a gull.

The blue mussel, also known as the common mussel, is a medium-sized edible marine bivalve mollusc in the family Mytilidae, the mussels. Blue mussels are subject to commercial use and intensive aquaculture.
Similar species: Mytilida
By Christine Young
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Uploaded Sep 10, 2018. Captured Sep 6, 2018 08:27 in 14 Dock Square, Kennebunkport, ME 04046, USA.