Psellogrammus is a genus of freshwater fish in the family Characidae. It contains the single species Psellogrammus kennedyi, which occurs in Argentina, Brazil, and Paraguay. It is found in the Paraguay and São Francisco River basins.

The fish is named in honor of Clarence Hamilton Kennedy (1879-1952), Eigenmann’s student, later a renowned entomologist, who co-authored work on Paraguayan fishes in which appeared this description.

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