List of fishes of Colorado

The U.S. State of Colorado is home to 101 fishes, 55 of which are native. Twenty-three native species are threatened or endangered at either the federal or state level. The federally endangered species are the Humpback Chub (Gila cypha), Bonytail (Gila elegans), Colorado Pikeminnow (Ptychocheilus lucius), and Razorback Sucker (Xyrauchen texanus).