Kumonryu
A variant of Koi (Cyprinus rubrofuscus)

Photo: KoiQuestion · CC BY-SA 2.0
A doitsu black-and-white koi with bold patterns that can change across seasons and years. All-black individuals have a bluish tint.
A variant of Koi (Cyprinus rubrofuscus)

Photo: KoiQuestion · CC BY-SA 2.0
A doitsu black-and-white koi with bold patterns that can change across seasons and years. All-black individuals have a bluish tint.