Pimelodus absconditus is a species of long-whiskered catfish in the family Pimelodidae. Referred to colloquially as mandi pintado along side several other species of Pimelodus, which translates to painted mandi, it is characterized by its irregular brown spots along the back, and grows to approximately .

P. absconditus is a benthopelagic freshwater catfish found throughout the Paraná River and Uruguay River river basins in Uruguay and Argentina, rivers in southern Brazil as well as Bolivia and Paraguay.

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