The viper dogfish or viper shark (Trigonognathus kabeyai) is a rare species of dogfish shark in the family Etmopteridae, and the only extant member of its genus. It has been found in the Pacific Ocean off southern Japan, the Bonin Islands, Pacific Ocean off northern Taitung County and the Northwestern Hawaiian Islands. This species inhabits upper continental slopes and seamounts.
The viper dogfish or viper shark (Trigonognathus kabeyai) is a rare species of dogfish shark found in the Pacific Ocean off southern Japan, the Bonin Islands, Pacific Ocean off northern Taitung County and the Northwestern Hawaiian Islands. It lives on the ocean floor, specifically on steep slopes and seamounts.