Kikokuryu are scaleless (doitsu) koi with a white base combined with areas of black inside the single row of scales, along the back outside of the row, and on on the head around the eyes and nose. Kikokuryu are commonly thought to be metallic versions of Kumonryu.
Kumonryu | Blue Ridge Fish Hatchery. Probably the most intriguing variety of koi, Kumonryu will completely change their pattern many times throughout their life. They can go anywhere from solid white to solid black, or any conceivable combination in between.