Pristella crinogi is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins. It is found in the basins of the Tocantins River and São Francisco River.
This species reaches a length of .
The fish is named in honor of Brazilian herpetologist Cristiano de Campos Nogueira (âÂÂCrinogâÂÂ), for his help during the 2008 fish survey when this species was discovered.