Prodontocharax Eigenmann & Pearson, 1924

Bertaco, Vinicius A., Chuctaya, Junior, Jerep, Fernando C. & Malabarba, Luiz R., 2023, Revision of Prodontocharax and revalidation of Amblystilbe (Teleostei: Characidae: Cheirodontinae), with description of a new species, Neotropical Ichthyology (e 230031) 21 (3), pp. 1-32 : 5

Prodontocharax Eigenmann & Pearson, 1924

Prodontocharax Eigenmann & Pearson in Pearson, 1924:35 (Type-species: Prodontocharax melanotus Pearson, 1924 . Type by monotypy. Gender: masculine). —Géry, 1977:590 (listed in identification key). —Böhlke, 1984:48 (listed). —Almirón et al., 2001:38 (compared to Hypobrycon ). —Malabarba, 2003:221 (listed). —Mirande 2009:08 (phylogenetic relationships). —Mirande 2010:531 (phylogenetic relationships). — Oliveira et al., 2011:15 (phylogenetic relationships).

Diagnosis. The inferior mouth, with mouth slit located at horizontal through inferior margin of eye diagnoses Prodontocharax from other cheirodontine genera (except Amblystilbe ). The premaxilla with 4 to 6 teeth (vs. 8 to 10); the central cusp larger than lateral ones vs. similarly sized cusp on all teeth; the posterior edentulous lamina of the maxilla medially curved in relation to the anterior toothed portion (vs. posterior edentulous lamina of the maxilla flat and plane); the anteriormost portion of dentary at the symphyseal joint corresponding to nearly three times the height of the middle length portion of dentary (vs. the anteriormost portion of dentary at the symphyseal joint very narrow in lateral view, at least seven times narrower than the height of the middle length portion of dentary); the dentary teeth decreasing in size and tooth cusp number posteriorly, forming an anterior series of large and tricuspidate teeth followed by a second and not aligned series of small conical teeth (vs. dentary teeth nearly equal in size, shape and cusp number, forming a continuous series along the dentary); anal fin with 15 or less branched rays (vs. anal fin with 19 or more branched rays) diagnoses Prodontocharax from Amblystilbe .