The Paraguayan punaré (Thrichomys pachyurus) is a caviomorph rodent of South America from the spiny rat family. With its skull averaging 55 mm long, it is the largest species in the genus Thrichomys.[1] It is found in savannas and forest edges in southwestern Brazil and northern Paraguay within the cerrado ecoregion. The species tolerates a degree of habitat disturbance, and is considered abundant throughout its range.
Its karyotype has 2n = 34 and FN (fundamental number) = 64.