GENUS: POECILOCHARAX EIGENMANN, 1909

Type species: Poecilocharax bovalii Eigenmann, 1909 (by original description); now Poecilocharax bovaliorum (mandatory name correction: Fricke et al., 2021b).

Diagnosis: Poecilocharax can be distinguished from the only other crenuchin genus, Crenuchus, by the following morphological characteristics: (1) adipose fin absent (vs. present); (2) pelvic-fin rays eight, with the following formula: i,seven or i,six,i (vs. pelvic-fin rays nine or ten, with formula: i,eight or i,nine); and (3) posterior terminus of maxilla not surpassing vertical through anterior margin of the orbit (vs. posterior terminus of maxilla extending posterior to orbital margin, reaching vertical through pupils).