stone crab

Short definition from Wiktionary

Noun

1. 1
   A Florida stone crab (Menippe mercenaria, family Menippidae.
2. 2
   A mangrove stone crab (Myomenippe hardwickii, family Menippidae.
3. 3
   A king crab (crustacean of subfamily Lithodinae).
4. 4
   A hairy stone crab (Lomis hirta, family Lomisidae)