Mottled Sculpin and Similar Species
Cottus bairdii
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Open the appSeveral fish can be confused with Mottled Sculpin. Here are the key differences.
Species often confused with {name}
Slimy Sculpin
Cottus cognatus
Key differences: The Slimy Sculpin typically has a more slender body, a more pointed snout, and often has a distinct, sharp preopercular spine. Its skin is generally smoother with fewer prickles, and the lateral line is usually incomplete, ending before the caudal fin. Mottled Sculpin often has a complete lateral line.
Torrent Sculpin
Cottus rhotheus
Key differences: The Torrent Sculpin is generally larger and more robust, with a more pronounced preopercular spine that is often hooked. It typically has a more complete covering of prickles on its body, and its pectoral fins are usually shorter relative to its body size compared to the Mottled Sculpin.
Spoonhead Sculpin
Cottus ricei
Key differences: The Spoonhead Sculpin has a distinctive, very broad and flattened head, giving it a 'spoon-like' appearance. It also possesses a prominent, sharp preopercular spine and typically has a more complete covering of prickles. Its habitat often includes deeper, colder waters of large lakes.
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