Chlamys rubida[Note 1] is a species of bivalve mollusc in the family Pectinidae found on the west coast of North America from the Gulf of Alaska to San Diego, California.

The pink scallop has two convex valves joined by a hinge joint and grows to a diameter of about 6 centimetres (2.4 in).

[2] The pink scallop usually has a symbiotic relationship with an encrusting sponge, usually the orange Myxilla incrustans, which grows on its left valve.

[4] When a starfish such as the mottled star (Evasterias troschelii) approaches, the scallop "smells" its presence with chemoreceptors at the tips of its tentacles.

If a starfish succeeds in touching a sponge growing on the shell, it often turns away, apparently repelled by this distasteful coating.