Freshwater Sculpin and Similar Species
Cottus
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Open the appSeveral fish can be confused with Freshwater Sculpin. Here are the key differences.
Species often confused with {name}
Slimy Sculpin
Cottus cognatus
Key differences: Often has a more slender body and typically lacks the distinct preopercular spine found in some other Cottus species. The palatine teeth are usually absent or poorly developed. Often found in colder, deeper waters than Mottled Sculpin.
Mottled Sculpin
Cottus bairdi
Key differences: Possesses a distinct, sharp preopercular spine (a spine on the cheek bone). Palatine teeth are usually present. Often found in warmer, shallower waters than Slimy Sculpin.
Spoonhead Sculpin
Cottus ricei
Key differences: Distinguished by a very broad, flattened head and a prominent, spoon-like snout. Often has a more pronounced lateral line that extends onto the caudal fin.
Torrent Sculpin
Cottus rhotheus
Key differences: Generally larger and more robust than other sculpins, with a more elongated body. Often has a more pointed snout and a distinct dark bar at the base of the caudal fin.
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