Prodontocharax Eigenmann & Pearson, 1924

Prodontocharax Eigenmann & Pearson, 1924 View in CoL

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 .