Thaptomys nigrita (Lichtenstein 1829)
[Thaptomys] nigrita (Lichtenstein 1829), Darst. Saugeth., Vol. 7: pl. 35, fig. 1.
Type Locality: Brazil, Rio de Janeiro State, vicinity of Rio de Janeiro.
Vernacular Names: Ebony Akodont.
Synonyms: Thaptomys fuliginosus (Wagner 1845); Thaptomys henseli (Leche 1896); Thaptomys orycter (Lund 1841); Thaptomys subterraneus (Hensel 1873) .
Distribution: SE Brazil (Bahia to Rio Grande do Sul), E Paraguay, and NE Argentina (Misiones).
Conservation: IUCN – Lower Risk (lc) as Akodon nigrita .
Discussion: Massoia (1963 a) clarified the identity of subterraneus, the type of Thaptomys, as a synonym of the earlier named nigrita and amplified the distribution of the species.