Order Rodentia - Family Cricetidae Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2 955 1189 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 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) .