Necromys lasiurus (Lund 1840)

[Necromys] lasiurus (Lund 1840), K. Dansk. Vid. Selsk. Naturv. Math. Afhandl., 8: 50.

Type Locality: Brazil, Minas Gerais State, Rio das Velhas, Lagoa Santa.

Vernacular Names: Hairy-tailed Akodont.

Synonyms: Necromys arviculoides (Wagner 1842); Necromys brachyurus (Wagner 1845); Necromys fuscinus (Thomas 1897); Necromys lasiotus (Lund 1838); Necromys orobinus (Wagner 1842); Necromys pixuna (Moojen 1943); Necromys renggeri (Pictet 1844) .

Distribution: C Brazil south of the Amazon River, extreme SE Perú (as per Pacheco et al., 1995), and perhaps NE Argentina (see Galliari et al., 1996); limits uncertain.

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

Discussion: Revised as part of Zygodontomys (Hershkovitz, 1962); inclusion of lasiurus within Bolomys (or Akodon), not Zygodontomys, supported by karyological and morphological information (see Gardner and Patton, 1976; Maia and Langguth, 1981; Voss and Linzey, 1981). Geographic variation assessed, as Bolomys lasiurus, by Macêdo and Mares (1987), who retained only fuscinus and lasiurus as subspecies. The validity of listed synonyms very much needs confirmation: e.g., the taxon arviculoides is considered a species by some (Cabrera, 1961; Gyldenstolpe, 1932; Ximénez & Langguth, 1970), or reallocated to lasiurus by others (Macêdo and Mares, 1987; Reig, 1978, 1987), while Galliari and Pardiñas (2000) passingly mention it as another species related to N. obscurus . Also see following account of N. lenguarum, included by some (e.g., Macêdo and Mares, 1987) as another junior synonym; morphological discrimination and distributional limits of the two forms require refinement.