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.
Yamabuki Ogon are koi of a solid, metallic-yellow color. As with other Ogon koi, a clean, unblemished head and body are important. Variations of Yamabuki Ogon include Gin Rin Yamabuki Ogon and Doitsu Yamabuki Ogon.