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Nigorobuna

Nigoro-buna, sometimes called round crucian carp, is a type of wild goldfish (Carassius auratus grandoculis) or related cyprinid (Carassius buergeri grandoculis) endemic to Japan. Its habitat is limited to Lake Biwa, its tributaries and distributaries, and irrigation canals, in the Shiga Prefecture (west-central Honshu), northeast of Kyoto.

Nigorobuna  Click to go to Wikipedia