Amur ninespine stickleback

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Amur ninespine stickleback and the black kokanee salmon are now both extinct in Japan. The Touching Corner Near the exit of the aquarium is the touching corner. More

Order : Gasterosteiformes
Family : Gasterosteidae
Genus : Pungitius
Species : Pungitius sinensis
Authority : Guichenot, 1869