Is this a clam??

JonV88

New member
eduna6ub.jpg
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Not a clam, well the ones you would buy anyway. They would be attached to the exterior of the rock if anything. They thrive in the light.
 
Yes, it's one of the boring (drilling, not dull) clams in the family Arcidae. They may react to light or shadows and withdraw farther into the rock. They're harmless.



Don
 
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