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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
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.
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页码:319 / 327
页数:9
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