Japanese gissu

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A Pterothrissus gissu
A Pterothrissus gissu

The Pterothrissus gissu , or more commonly the Japanese Gissu, is a saltwater fish species of the Albulidae family. The Japanese Gissu is a rare albulid fish that is distributed in deep water off Japan. This fish is known to pass through a leptocephalus larval stage, but only metamorphosed (after reaching the fully grown stage) specimens have been available.