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.
Bairdi Snow Crab. There are two species of snow crab, chionoecetes bairdi and chionoecetes opilio. The Bairdi is the larger of the two species reaching sizes of 3 to 5 pounds while the opilio only reaches 1.5 to 2.5 pounds.The Bairdi Snow Crab is also marketed under the trade name âTanner Crab.. The meat yield from a whole opilio is just 17%, compared to about 20% for Bairdi.The Yield from cooked sections to cooked meat for Bairdi averages about 34%.he Bairdi Snow Crab is also marketed under the trade name âTanner Crab.. The meat yield from a whole opilio is just 17%, compared to about 20% for Bairdi. The Yield from cooked sections to cooked meat for Bairdi averages about 34%.