Necromys obscurus (Waterhouse 1837)

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 955-1189 : 1130

Necromys obscurus (Waterhouse 1837)

[Necromys] obscurus (Waterhouse 1837) , Proc. Zool. Soc. Lond., 1837: 16.

Type Locality: Uruguay, Maldonado Dept., Maldonado.

Vernacular Names: Dark-furred Akodont.

Synonyms: Necromys scagliarum Galliari and Pardiñas 2000 .

Distribution: Isolated populations along coastal areas in S Uruguay ( obscurus ) and Buenos Aires Prov., EC Argentina ( scagliarum ).

Conservation: IUCN – Lower Risk (lc) as Bolomys obscurus .

Discussion: Type species of Cabreramys ( Massoia and Fornes, 1967) , a taxon considered a junior synonym of Bolomys by Reig (1978, 1987) and of Necromys by Massoia and Pardiñas (1993). Formerly contained benefactus as a subspecies (see above account). Geographic variation and allopatric distribution in light of late Pleistocene climatic changes discussed by Galliari and Pardiñas (2000). The strong morphometric differentiation between and probable long-term isolation of the named populations, as demonstrated by the latter authors, recommend reconsideration of their status using other information sources.