Tuesday, August 7, 2012

[Ichthyology • 2004] Hemiancistrus meizospilos & M. votouro • Two new species of the genus Hemiancistrus Bleeker (Siluriformes: Loricariidae) from the upper rio Uruguai basin, southern Brazil

Hemiancistrus meizospilos Cardoso & da Silva, 2004

Two new species of Hemiancistrus are described: Hemiancistrus votouro n. sp. and Hemiancistrus meizospilos n. sp. from upper rio Uruguai basin. They differ from their congeners except H. chlorostictus, H. megacephalus, and H. macrops by the presence of light dots on fins and lateral and dorsal portions of head and body. Hemiancistrus votouro and H. meizospilos differ from the species above by meristic and morphometric data and by the color pattern.
Keywords: Neotropical, catfish, Ancistrinae, Hemiancistrus chlorostictus.

Hemiancistrus votouro Cardoso & da Silva, 2004

Etymology. The specific name votouro (noun in apposition) is given in honor of the Votouro Indian Reserve, situated on Benjamin Constant, Rio Grande do Sul, Brazil.

Hemiancistrus meizospilos Cardoso & da Silva, 2004

Etymology. From the Greek adjective meizon (masculine, nominative singular), comparative of megas (big, great), and spilos (dots), alluding to larger size of dots on comparison to smaller size on remaining white-spotted species of southern Brazil.

Cardoso, Alexandre Rodrigues; da Silva, José Francisco Pezzi. 2004. Two new species of the genus Hemiancistrus Bleeker (Teleostei: Siluriformes: Loricariidae) from the upper rio Uruguai basin. Neotropical Ichthyology. 2 (1): 1–8.