Those are spirorbid worms, probably. Normally they make a tight circle, but can grow more random/wilder like yours. Common filter feeders that live in calcified tubes.
Those are spirorbid worms, probably. Normally they make a tight circle, but can grow more random/wilder like yours. Common filter feeders that live in calcified tubes.
Thanks all for the answers
Grue
Don't Turn off the lights! The Grue's will get you!