Sacramento Sucker and Similar Species
Catostomus occidentalis
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Open the appSeveral fish can be confused with Sacramento Sucker. Here are the key differences.
Species often confused with {name}
Tahoe Sucker
Catostomus tahoensis
Key differences: The Tahoe Sucker typically has a more slender body and a smaller mouth with less papillose lips. Its geographic range is primarily restricted to the Lahontan basin (e.g., Lake Tahoe, Truckee River), while the Sacramento Sucker is found west of the Sierra Nevada.
Modoc Sucker
Catostomus microps
Key differences: The Modoc Sucker has a much smaller mouth and eye, and a more compressed body. It is restricted to the Modoc Plateau region of northeastern California and is a federally listed endangered species.
Klamath Largescale Sucker
Chasmistes muriei (extinct) or Deltistes luxatus (Lost River Sucker)
Key differences: While not directly sympatric in most areas, other suckers in adjacent drainages can be confused. The Klamath Largescale Sucker (Chasmistes muriei, now extinct) and Lost River Sucker (Deltistes luxatus) have larger scales and different mouth structures, often with a more cartilaginous lower jaw. Their range is in the Klamath Basin.
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