grunt sculpin

The term "grunt sculpin" refers to a specific species, Rhamphocottus richardsonii, belonging to the family Rhamphocottidae. This fish is found in the North Pacific and is characterized by a highly modified pelvis with anteriorly projecting keels.1

Sculpins, in general, are a diverse family of small to medium-sized fish found in both saltwater and freshwater, primarily in northern regions. They typically have elongated bodies, wide heads, and large pectoral fins. While most sculpins are bottom-dwellers and not highly valued as food, some are used as bait, and others can be detrimental as predators of commercially important species. The family Cottidae, which includes sculpins and bullheads, is the largest family within the suborder Cottoidei, with around 275 species.21

It is important to distinguish sculpins from "grunts" (family Haemulidae), which are marine fish known for the pig-like sounds they produce and are found in warm, tropical waters. Grunts are edible and often have bright mouth linings.3