It lives off the continental shelves in very deep water (839–2800 m) in the North Pacific Ocean by the coasts of Japan, the Bering Sea, and California.

[2] The head is broad and flattened, the eyes are large and widely separated, and the mouth is curved with fleshy lips.

Behind the head, the body tapers rapidly to the caudal peduncle and there is a gelatinous layer between the skin and the muscle.

The blob sculpin is native to the northeastern Pacific Ocean where it is found on or near the seabed at depths from 500 to 2,800 m (1,600 to 9,200 ft).

[5] The eggs were free of sediment which makes it likely the adults were actively fanning them, the first known example of parental care in egg-laying deep sea fishes.

At one site, 84 sculpins and 64 nests were observed as well as numerous brooding octopuses; the researchers described it as a "reproductive hot spot".