Bell Crab Resources A material used for Cooking.

A species of crab that makes its home in miniature bells. Bell Crabs feed on fish, shrimp, clams, and other small sea creatures. They can scuttle about quickly, emitting a jingling sound as they go. At night, they avoid predators by hiding beneath the decaying hulls of beached boats.
Sources
The Strand of Penitent's End