Manoela M. F. Marinho, Fernando C. P. Dagosta and José L. O. Birindelli
Abstract
A new species of Hemigrammus is described from the middle rio Tocantins basin, central Brazil. The new species can be distinguished from all congeners by having a black midlateral stripe on the body extending from the posterior margin of the eye to the median caudal-fin rays. Mature males possess dorsal-, pelvic-, and anal-fin rays elongate, features that also help to recognize the new species. Although the new species is described in Hemigrammus, some specimens present a complete series of pored scales in the lateral line. A discussion about the generic allocation of the new species is presented.
Quelle: Neotropical Ichthyology, 12(2): 257-264, 2014 (pdf, öffentlich)