Longnose Sucker and Similar Species
Catostomus catostomus
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Open the appSeveral fish can be confused with Longnose Sucker. Here are the key differences.
Species often confused with {name}
White Sucker
Catostomus commersonii
Key differences: The White Sucker has a shorter, blunter snout that does not project significantly beyond the mouth. Its lateral line scales are fewer, typically 55-85. The lips are also less papillose.
Largescale Sucker
Catostomus macrocheilus
Key differences: The Largescale Sucker has larger scales (fewer than 80 in the lateral line) and a less prominent snout compared to the Longnose Sucker. Its mouth is also more oblique.
Mountain Sucker
Catostomus platyrhynchus
Key differences: The Mountain Sucker is generally smaller and has a flattened head and a more pronounced 'hump' behind the head. Its snout is also less elongated than the Longnose Sucker.
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