Scopelogadus beanii, or Bean's bigscale, is a species of ridgehead fish. It is named for Tarleton Hoffman Bean.
Bean's bigscale is dark brown or black in colour, with a maximum length of . It is one of the largest and deepest-dwelling ridgeheads. It has two dorsal spines, one anal spine, 10âÂÂ11 dorsal soft rays and 7âÂÂ9 anal soft rays. Its caudal peduncle (the tapered region behind the dorsal and anal fins where the caudal fin attaches to the body) is long. It has ridges of thin bones supporting deep mucous cavities on the head.
Bean's bigscale is mesopelagic and bathypelagic, living at depths of up to , and is common in the Atlantic Ocean, Pacific Ocean, Indian Ocean and Tasman Sea.
Scopelogadus beanii feeds on amphipods, polychaetes, jellyfish and mysids.