Brown box crab
The brown box crab, Lopholithodes foraminatus, is a king crab that lives from Prince William Sound, Alaska to San Diego, California, at depths of. It reaches a carapace length of and feeds on bivalves and detritus. It often lies buried in the sediment, and two foramens in the chelipeds allow water into the gill chamber for respiration. The gill chamber is also sometimes used by the commensal fish Careproctus to hold its eggs.
