Oxymycterus 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 : 1156

Oxymycterus Waterhouse 1837

Oxymycterus Waterhouse 1837 , Proc. Zool. Soc. Lond., 1837: 21.

Type Species: Mus nasutus Waterhouse 1837

Species and subspecies: 16 species:

Species Oxymycterus akodontius Thomas 1921

Species Oxymycterus amazonicus Hershkovitz 1994

Species Oxymycterus angularis Thomas 1909

Species Oxymycterus caparoae Hershkovitz 1998

Species Oxymycterus dasytrichus (Schinz 1821)

Species Oxymycterus delator Thomas 1903

Species Oxymycterus hiska Hinojosa, Anderson, and Patton 1987

Species Oxymycterus hispidus Pictet 1843

Species Oxymycterus hucucha Hinojosa, Anderson, and Patton 1987

Species Oxymycterus inca Thomas 1900

Species Oxymycterus josei Hoffmann, Lessa, and Smith 2002

Species Oxymycterus nasutus Waterhouse 1837

Species Oxymycterus paramensis Thomas 1902

Species Oxymycterus quaestor Thomas 1903

Species Oxymycterus roberti Thomas 1901

Species Oxymycterus rufus (G. Fischer 1814)

Discussion: Akodontini. Studies of electromorphic and gene-sequence variation decisively support the monophyly of Oxymycterus (minus iheringi , see Brucepattersonius ) and its tribal placement as an akodontine (D’Elía, 2003; D’Elía et al., 2003; Hinojosa et al., 1987; Hoffmann et al., 2002; Patton et al., 1989; Smith and Patton, 1993, 1999); according to cytochrome b data, a sister group to the Necromys Thaptomys Akodon clade ( Smith and Patton, 1999) or to Juscelinomys (D’Elía, 2003; D’Elía et al., 2003). Studies addressing the morphological definition of Oxymycterus include Carleton (1973), Hooper and Musser (1964 a), Hinojosa et al. (1987), Vorontsov (1967), and Voss and Linzey (1981). Diploid number of species thus far karyotyped (ca. 8) have proven to be identical (2n = 54, FN = 64) ( Bonvicino et al., 1998 b; Pereira et al., 2001; Vitullo et al., 1986).

Specific taxonomy needs full published revision, including emended diagnoses of valid taxa, objective criteria for attributed synonyms, and vouchered documentation of ranges. Nominal species here recognized discordantly assimilate Cabrera’s (1961) classification, Reig’s (1987) provisional tally of valid forms (based on his examination of BMNH types), and recent descriptions by Hinojosa et al. (1987), Hershkovitz (1994, 1998), and Hoffmann et al. (2002). Generic characters, nomenclatural foundation of described forms, and natural history reports were compiled by Hershkovitz (1994).