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Grayback

Grayback is a fish cryptid reported from Kamisu City, Ibaraki Prefecture, Japan.

Sightings[]

One day around the year 2000, a person with the handle Tokkie was fishing for bass in the Tone River that runs through Kamisu City. As he was watching a boat floating about 30-40 meters from the riverbank, a black object the size of a rugby ball floated on the surface behind the boat and then submerged into the water. A back-like portion of the creature then appeared on the surface of the water. It was gray in color, and not all of the back was visible, but the portion protruding from the surface of the water alone was at least one meter long. The giant fish continued to swim upstream, and Tokkie was able to see the creature's caudal fin and small dorsal fin. The fish could have been more than three meters long.

Explanations[]

In the Tone River, there are large fish species of Chinese origin such as grass carp and black carp because they were released in the past, so it is extremely likely that these are misidentified.

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