New Rheophilic Species of Electric Knifefish from the Rapids and Waterfalls of the Lower Rio Xingu, Brazil (Gymnotiformes: Apteronotidae)

被引：7
|
作者：
de Santana, Carlos David [1 ]
Vari, Richard P. [1 ]
机构：
[1] Smithsonian Inst, Natl Museum Nat Hist, Dept Vertebrate Zool, Div Fishes, Washington, DC 20013 USA
来源：
COPEIA | 2010年 / 01期
关键词：
STERNARCHORHYNCHUS-CASTELNAU; AMAZON BASIN; FISH;
D O I：
10.1643/CI-09-068
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Sternarchogiton zuanoni, a new species of electric knifefish, is described from the rapids and waterfalls of Cachoeira de Kaituka along the Rio Xingu at Altamira, Pari, Brazil. The new species Is diagnosable from congeners by a unique combination of morphometric and meristic features, details of pigmentation, the pattern of dentition on the dentary, the possession of an edentulous premaxilla, and an unelaborated lower lip. The description of S. zuanoni brings the number of species in the genus to five. The presence of S. labiatus in the Rio Orinoco basin Is documented and a key to the species of the genus Is provided.
引用
收藏
页码：160 / 164
页数：5
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