Gymnoclinus cristulatus Gilbert & Burke, 1912. Trident Prickleback. To 11.6 cm (4.6 in) SL. Hokkaido to Kuril Islands, eastern Kamchatka, Commander Islands, and western Aleutian Islands at Amchitka Island, Alaska. Benthic; depth: intertidal to 40 m (131 ft); usually shallower than 20 m (66 ft). All in Mecklenburg et al. (2002).