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 delator Thomas 1903 Oxymycterus delator Thomas 1903 , Ann. Mag. Nat. Hist., ser. 7, 11: 489 . Type Locality: Paraguay , Paraguarí Dept., Sapucaí. Vernacular Names: Paraguayan Hocicudo . Distribution: E Paraguay , SC Brazil . Conservation: IUCN – Lower Risk (lc). Discussion: Provisionally retained as a species by Reig (1987), who questioned its distinction from O. rufus . Genetically well delineated from O. rufus and sister species to O. amazonicus according to phylogenetic analysis of cytochrome b data ( Hoffmann et al., 2002 ). Distributional limits uncertain: not recorded for the Brazilian fauna by Fonseca et al. (1996) but mapped as broadly distributed in SC Brazil by Hoffmann et al. (2002) .