6085 Acipenser schrenckii Brandt, 1869 Acipenseridae Sturgeons Acipenseriformes Chondrostei Amur sturgeon Asia: Endemic to the Amur River system. Two morphs, brown and gray, represent the species in the Amur River basin. Occurrence in the Sea of Japan (Ref. 11102) needs confirmation. AMNH 2103 1900 Acipenser schrencki