A fiddler crab.
a small, burrowing crab (genus Uca), the male of which has one claw much larger than the other
Any of various burrowing crabs of the genus Uca of coastal areas, the male of which has one greatly enlarged claw.
male Atlantic marsh
(plural fiddler crabs)
- a genus of crab in which the male has one hugely enlarged claw (genus Uca).