A New Genus and Species of Hypoptopomatine Catfish (Siluriformes: Loricariidae) from the Upper Rio Sao Francisco Basin, Brazil

被引：15
|
作者：
Reis, Roberto E. [1 ]
Pereira, Edson H. L. [1 ]
Lehmann, Pablo A. [2 ]
机构：
[1] Pontificia Univ Catolica Rio Grande do Sul, Lab Sistemat Vertebrados, BR-90619900 Porto Alegre, RS, Brazil
[2] Univ Vale Rio dos Sinos, Lab Ictiol, BR-93022000 Sao Leopoldo, Brazil
来源：
COPEIA | 2012年 / 01期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1643/CI-11-068
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Plesioptopoma curvidens is a new genus and species of hypoptopomatine loricariid from the upper Rio Paraopeba, a tributary to the Rio Sao Francisco in southeastern Brazil. Plesioptopoma is attributed to the hypoptopomatines based on five shared synapomorphies, and differs from all remaining members of the subfamily by having the premaxilla and dentary tooth series strongly curved mesially, in such a way that the mesial portion of the tooth series in both sides are turned and run parallel to each other, the caudal peduncle distinctly quadrangular in cross-section, and the anterior margin of the snout devoid of dermal plates.
引用
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页码：6 / 11
页数：6
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