Keratosis is the term for any condition that is a benign overgrowth  and thickening of the epidermis.
Opilio Crab. Chionoecetes, the proper name of the Opilio Crab is a genus of crab that lives in the colder waters of the northern Pacific and Atlantic Oceans. The Opilio Crab is very spider like in appearance and has four pairs of legs that are quite spindly looking.hionoecetes, the proper name of the Opilio Crab is a genus of crab that lives in the colder waters of the northern Pacific and Atlantic Oceans. The Opilio Crab is very spider like in appearance and has four pairs of legs that are quite spindly looking.
Snow Crab or Centollo. The centollo is a crab that is popular in the North of Spain and has long thin legs and two spines on the front for protection. These crabs can sometimes weigh in at over 8 lbs. These can be used in all sorts of Spanish dishes -- soufflÃ©s, croquetas, crab cakes or empanada filling.