Sculpin and Similar Species
Cottus spp.
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Open the appSeveral fish can be confused with Sculpin. Here are the key differences.
Species often confused with {name}
Mottled Sculpin
Cottus bairdii
Key differences: Often has a distinct dark bar at the base of the caudal fin and typically has a complete lateral line. The preopercular spine is usually simple and straight.
Slimy Sculpin
Cottus cognatus
Key differences: Generally lacks the caudal fin bar of the Mottled Sculpin and often has an incomplete lateral line. The preopercular spine can be slightly curved or hooked.
Torrent Sculpin
Cottus rhotheus
Key differences: Distinguished by a more slender body, a longer snout, and often more pronounced prickles on the body. Typically found in faster-flowing waters.
Coastrange Sculpin
Cottus aleuticus
Key differences: Often has a more compressed body and a smaller mouth compared to other Pacific Northwest Cottus species. The lateral line is usually complete.
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