IUCN threat status:

Data Deficient (DD)

Distribution

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Range Description

South America inland waters: probably endemic to the Paraguay and lower Paraná river basins, it is found in Rio de la Plata, lower-mid Paraná River, mid Uruguay River and Paraguay River in Northeastern Argentina, western Brazil (States of Mato Grosso, Paraná and Rio Grande do Sul), central Paraguay and western Uruguay (Rosa 1985, Carvalho et al. 2003, Araújo et al. 2004, assessor's pers. obs.). Citations of this species for the Orinoco and Amazon drainages probably represent misidentifications (Rosa 1985, assessor's pers. obs.).

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Source: IUCN

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