A new species of South American ghost knifefish (Apteronotidae: Adontosternarchus) from the Amazon Basin

被引:0
|
作者
Lundberg, John G. [1 ]
Fernandes, Cristina Cox [2 ,3 ]
机构
[1] Acad Nat Sci Philadelphia, Dept Lehthyol, Philadelphia, PA 19103 USA
[2] Inst Nacl de Pesquisas da Amazonia, Manaus, Amazonas, Brazil
[3] Univ Massachusetts, Morrill Sci Ctr, Dept Biol, Amherst, MA 01003 USA
基金
美国安德鲁·梅隆基金会; 美国国家科学基金会;
关键词
Species novum: Adontosternarchus nebulosus Lundberg and Cox Fernandes;
D O I
10.1635/0097-3157(2007)156[27:ANSOSA]2.0.CO;2
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
We describe a new species of apteronotid electric fish, Adonosternarchus nebulosus, from the Brazilian and Peruvian Amazon. Adontosternarchus nebulosus differs trenchantly from its congeners in its boldly contrasting color pattern of irregular, dark blotches on the back and sides followed posteriorly by a long pallid area extending far onto the caudal peduncle; relatively few anal-fin rays (112-154, mean 133.2): relatively few vertebrae counted to base of last anal-fin ray (52-57, mean 54.5): and a relatively deep body, 21-33% of distance to origin of dorsal filament. Adontosternarchus nebulosus is common in the Amazon main and tributary river channels.
引用
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页码:27 / 37
页数:11
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