A new long-finned Corydoras Lacepede, 1803 (Siluriformes: Callichthyidae) from the lower rio Parana basin, Brazil

被引：8

作者：

Tencatt, Luiz F. C. ^{[1
]}

Britto, Marcelo R. ^{[2
]}

Pavanelli, Carla S. ^{[1
]}

机构：

[1] Univ Estadual Maringa, Nucleo Pesquisas Limnol Ictiol & Aquicultura, Maringa, Parana, Brazil

[2] Univ Fed Rio de Janeiro, Museu Nacl, Dept Vertebrados, Setor Ictiol, BR-20940040 Rio De Janeiro, RJ, Brazil

来源：

NEOTROPICAL ICHTHYOLOGY | 2014年 / 12卷 / 01期

关键词：

Canal da Piracema; Corydoradinae; Itaipu dam; Sexual dimorphism; Taxonomy; PHYLOGENY;

D O I：

10.1590/S1679-62252014000100007

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

A new species of Corydoras is described from the lower rio Parana basin, just downstream from Itaipu Dam, Brazil, close to Paraguay boundary. The new species can be distinguished from most of its congeners by the infraorbital 2 with a posterior laminar expansion conspicuously reduced, first and second dorsal-fin branched rays conspicuously elongated in males, meseth-moid entirely covered by skin, and by the presence of four to six irregular black or brownish blotches on the midline of the flank. The probable occurrence of the new species in the floodplain of the upper portion of the rio Parana drainage is discussed.

引用

页码：71 / 79

页数：9

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