On the mammals collected by Friedrich Sellow in Brazil and Uruguay (1814 – 1831), with special reference to the types and their provenance Author Garbino, Guilherme S. T. Author Nogueira, Marcelo R. text Zootaxa 2017 4221 2 172 190 journal article 37302 10.5281/zenodo.248623 1bdf89cc-ca41-4094-a65a-bf6c59ca96af 1175-5326 248623 35BBFC9F-A97E-4E08-A294-F8F6D381A7B7 Mus tomentosus Lichtenstein, 1830 (ZMB_MAM 1699) Lichtenstein (1830) , when describing Mus tomentosus (currently Kunsia tomensotus ), affirmed that the type specimen ( ZMB _MAM 1699, skin, skull) came from forested areas along the Rio Uruguay . The catalog entry and the specimen label read “ Uruguay ” as the locality ( Fig. 5 ). Hershkovitz (1966:120) further restricted the type locality by stating: “There is no good reason for believing that the type of Mus tomentosus was collected in any place other than the one given by Lichtenstein and I hereby restrict it to the Rio Uruguay in southeastern Brazil ” . It is plausible to assume that Kunsia tomentosus distribution is associated with the open and transitional woodland formations of South America ( Bezerra et al. 2007 ). Therefore , the restriction made by Hershkovitz (1966) , to a region covered in the 19th century by seasonal and humid forests ( Fig. 1 ), is not likely to be the correct collecting type locality. Bezerra et al. (2007) and Terán et al. (2008) defined the distribution of K. tomentosus as the Cerrado of central and west–central Brazil ; eastern, northeastern, and northwestern Bolivia; and southeastern Brazil , in the state of Minas Gerais . From these areas, Sellow collected in the open Cerrado of the state of Minas Gerais . Bezerra et al. (2007) , Pardiñas et al. (2008) and Bezerra (2015) also acknowledge that the type locality, as currently understood, lies more than 1000 km from the nearest suitable habitat. Pardiñas et al. (2008) stated that the type locality may be incorrect and that the type specimen probably came from southeastern Brazil . Recent paleontological studies, however, have found osteological remains of K. tomentosus in Rio Grande do Sul , indicating that the species may have been recently extirpated from the area ( Stutz et al. 2015 ). Due to these findings, we keep the type locality of K. tomentosus as Rio Uruguay , Rio Grande do Sul , and suggest that the species may still be present in Rio Grande do Sul .