Heptapterus mbya (Siluriformes: Heptapteridae), a new species of catfish from the Parana river basin, in Argentina

被引：0

作者：

de las Mercedes Azpelicueta, Maria ^{[1
]}

Aguilera, Gaston ^{[2
]}

Marcos Mirande, Juan ^{[2
]}

机构：

[1] Museo La Plata, Div Zool Vertebrados, RA-1900 La Plata, Argentina

[2] CONICET Fdn Miguel Lillo, RA-4000 San Miguel De Tucuman, Tucuman, Argentina

来源：

REVUE SUISSE DE ZOOLOGIE | 2011年 / 118卷 / 02期

关键词：

new Heptapterus; Southernmost South America; Neotropical ichthyofauna;

D O I：

暂无

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Heptapterus mbya (Siluriformes: Heptapteridae), a new species of catfish from the Parana river basin, in Argentina. - We describe a new species of heptapterid catfish of the genus Heptapterus from the streams Cuna-Piru, Azul, and Moreno, in the province of Misiones, Argentina. Heptapterus mbya sp. n. is distinguished from all other congeners by dark plumbeous body and a low number of anal-fin rays that are branched (11-12) out of a total number of 15-17 anal fin rays, a large eye (13.8-17.9 % of HL), prepectoral distance 31.9-37.8 % of SL, distance between the last dorsal-fin ray and the adipose-fin origin 5.24-8.33 To of SL, adipose-fin base 47.4-58.5 % of SL, 13 principal caudal-fin rays, and 10-13 gill rakers on the first arch.

引用

页码：319 / 327

页数：9

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