Thylamys pusillus (Desmarest 1804)

[Thylamys] pusillus (Desmarest 1804), Tabl. Meth. Hist. Nat., in: Nouv. Dict. Hist. Nat., Vol. 24: 19.

Type Locality: Not stated; restricted to Paraguay, Misiones, "San Ignacio," by Tate (1933).

Vernacular Names: Common Fat-tailed Mouse Opossum.

Synonyms: Thylamys citella (Thomas 1912); Thylamys nana (Olfers 1818); Thylamys verax (Thomas 1921) .

Distribution: Paraguay, SE Bolivia, and N Argentina.

Conservation: IUCN – Lower Risk (lc).

Discussion: The name nana Illiger, 1815, is a nomen nudum and was not validated by Oken, 1816. The name marmota Oken, 1816, is not available; however its usage by Thomas (1902) is valid.