A new species of Pimelodus LaCepede, 1803 (Siluriformes: Pimelodidae) from the rio Sao Francisco drainage, Brazil

被引：22
|
作者：
Ribeiro, Frank Raynner V.
de Lucena, Carlos Alberto S.
机构：
[1] Inst Esperanca Ensino Super, BR-68040100 Santarem, PA, Brazil
[2] Pontificia Univ Catolica Rio Grande Sul, Lab Ictiol, Museu Ciencias & Tecnol, BR-90619900 Porto Alegre, RS, Brazil
来源：
NEOTROPICAL ICHTHYOLOGY | 2006年 / 4卷 / 04期
关键词：
catfish; taxonomy; South America; Neotropical;
D O I：
10.1590/S1679-62252006000400004
中图分类号：
Q95 [动物学];
学科分类号：
071002 ;
摘要：
Pimelodus pohli, new species, is described from the rio Sao Francisco drainage. It differs from congeners by the following characters in combination: adults with dark spots on anterodorsal region of body and young specimens (up to 100 mm SL) with three rows of dark spots laterally on body; comparatively long adipose fin, more than one third of the distance between posterior end of dorsal fin base and the vertical through posterior end of anal-fin base (21.8-26.2% SL); lips poorly developed; 20-25 gill rakers; and maxillary barbels slightly surpassing the caudal-fin base. A key to the species of Pimelodus of the rio Sao Francisco drainage is presented.
引用
收藏
页码：411 / 418
页数：8
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