The Sakhalin stickleback (Pungitius tymensis) is a fish of the family Gasterosteidae. It is a freshwater benthopelagic fish, that grows up to 7.0 cm in length. It is endemic to the islands of Hokkaido and Sakhalin.
The Sakhalin stickleback (Pungitius tymensis) is a fish of the family Gasterosteidae. It is a freshwater benthopelagic fish, that grows up to 7.0 cm in length. It is endemic to the islands of Hokkaido and Sakhalin.