A New Species of Corumbataia (Siluriformes: Loricariidae: Hypoptopomatinae) from Upper Rio Tocantins Basin, Central Brazil
Corumbataia veadeiros, new species, is described from the upper Rio Tocantins basin at the Chapada dos Veadeiros formation, Goiás State, central Brazil. The new species is distinguished from all other species of Corumbataia by its lack of a raised tuft of enlarged odontodes on the supraoccipital, an infraorbital canal entering the infraorbital series via the sphenotic, and by the color pattern of the caudal fin, which is composed of vertical dark bars.
Corumbataia veadeiros, nova espécie, é descrita da bacia do alto rio Tocantins na Chapada dos Veadeiros, Goiás, Brasil central. A nova espécie se diferencia das demais do gênero Corumbataia pela ausência de um tufo de odontódeos alongados no supraoccipital; canal infraorbital entrando na serie infraorbital via esfenótico e pelo padrão de colorido da nadadeira caudal, que é composto por barras verticais escuras.Abstract
Resumen
Corumbataia veadeiros, holotype, MCN 18571, male, 32.9 mm SL, creek at highway GO-241, km 2, tributary of Ribeirão dos Bois, Rio Tocantins basin, Teresina de Goiás, Goiás, Brazil.
Scanning electron microscope images of predorsal region: (A) Corumbataia tocantinensis, MCN 13462, 25.7 mm SL; (B) Corumbataia veadeiros, MCN 13435, 25.3 mm SL. Arrows indicate paired tuft of odontodes at the supraoccipital. EO = eye orbit; PD = predorsal plates; PT-SC = pterotic–supracleithrum; SOC = supraoccipital.
Scanning electron microscope images of left pectoral-fin spine of Corumbataia veadeiros. MCP 41477, (A) female, 29.1 mm SL; (B) male, 30.1 mm SL.
Geographic distribution of Corumbataia veadeiros in the upper Rio Tocantins basin. 1—mouth of the Rio das Almas drainage into the Rio Paranã, 2—mouth of the Ribeirão dos Bois drainage into the Rio Paranã, square represents type-locality and dot represents non-type collecting sites.
Contributor Notes
Associate Editor: C. J. Ferraris.