Thrichomys pachyurus (Wagner 1845)

[Isothrix] pachyurus Wagner 1845, Arch. Naturgesch., 1: 146.

Type Locality: Brazil, Matto Grosso, Cuiabá.

Vernacular Names: Paraguayan Punare.

Synonyms: Thrichomys crassicaudus (Wagner 1947); Thrichomys fosteri (Thomas 1903) .

Distribution: Mato Grosso (S Brazil), Paraguay.

Discussion: Originally described in the genus Isothrix by Wagner (1845) and included in Isothrix by Tate (1935) and Ellerman (1940). Included in Thrichomys apereoides by Cabrera (1961) but recognized as a distinct species based on chromosomal differentiation (Bonvicino et al., 2002) and sequence divergence (Braggio and Bonvicino, 2004). Karyotype has 2n=34; FN=64 (Bonvicino et al., 2002).