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New species of Metynnis Cope, 1878 (Characiformes: Characidae) from the rio Paraguay basin, Mato Grosso State, Brazil

2009; Sociedade Brasileira de Ictiologia; Volume: 7; Issue: 2 Linguagem: Inglês

10.1590/s1679-62252009000200002

ISSN

1982-0224

Autores

Carla Simone Pavanelli, Rafaela Priscila Ota, Paulo Petry,

Tópico(s)

Ichthyology and Marine Biology

Resumo

A new species of Metynnis is described from the rio Cuiabá and rio Manso drainages, in the upper rio Paraguay basin, Mato Grosso State, Brazil. This laterally compressed species, which rarely exceeds 140 mm in SL, is readily distinguished from other members of the genus Metynnis by having 100-110 lateral-line scales, 48-56 rows of scales above the lateral line, 32-36 circumpeduncular scales, 22-24 gill rakers, 38 vertebrae, singular color pattern, and relatively smaller snout, width, and head length.

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