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.
The flavour of the crab is another area where the two differ. Bairdi crab is characterized by a sweet flavour which is also succulent. However, this does not apply to the Opilio crab. Moreover, in some regions the Bairdi crab is known as the King crab and its Opilio counterpart as Queen Crab.n this article, we will look at two types of crabs, namely the Opilio crab and the Bairdi crab, both of which belong to the family of crabs, but owing to certain important differences, they are far from same. Chionoecetes opilio.