Great Sculpin Identification Guide

Key identification features

• Very large, broad head with heavy bony ridges and short spines on the gill covers
• Mottled brown, gray, and olive coloring with darker saddle-like patches across the back
• Tapering, moderately elongated body compared to smaller sculpin species
• Large, fan-shaped pectoral fins
• Pale to whitish belly contrasting with the darker mottled back and sides
• One of the largest sculpins, reaching up to 30 inches or more

Common look-alikes

• Cabezon: has a single large, branched fleshy cirrus above each eye, a feature great sculpin lacks, along with a more slender overall shape
• Other Myoxocephalus sculpins, such as the plain fin midshipman-mimicking staghorn sculpin: generally stay much smaller and show finer spine counts on the preopercle, best confirmed by comparing overall size and head spine detail
• Buffalo sculpin: has ridged, plated skin along the back and sides that great sculpin lacks

Where you'll see one

Great sculpin are common on mud, sand, and rocky bottoms in bays, estuaries, and nearshore waters throughout the North Pacific, from Puget Sound north through the Bering Sea and into the Sea of Okhotsk, often resting in shallow water where they can be seen from docks and jetties.