Cutthroat Trout and Similar Species
Oncorhynchus clarkii
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Open the appSeveral fish can be confused with Cutthroat Trout. Here are the key differences.
Species often confused with {name}
Rainbow Trout
Oncorhynchus mykiss
Key differences: Rainbow Trout typically lack the red/orange jaw slash (though some hybrids may show faint marks), lack basibranchial teeth, and generally have more evenly distributed, larger spots. They often have a distinct pink or red lateral stripe, which is usually absent or less pronounced in Cutthroat Trout.
Brown Trout
Salmo trutta
Key differences: Brown Trout have distinct red and black spots, often with light halos, and typically have a more yellowish or brownish body coloration. They lack the red jaw slash and basibranchial teeth. Their caudal fin is usually less forked than Cutthroat Trout.
Brook Trout
Salvelinus fontinalis
Key differences: Brook Trout are char, not true trout. They have distinctive worm-like markings (vermiculations) on their back and dorsal fin, and white leading edges on their pectoral, pelvic, and anal fins. They also have red spots with blue halos (areolae) on their sides. They lack the red jaw slash and basibranchial teeth.
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