Order Rodentia - Family Muridae Author Guy G. Musser Author Michael D. Carleton text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 501 755 book chapter http://doi.org/10.5281/zenodo.7353098 1-56098-217-9 7353098 Calomys laucha (Fischer, 1814) . In Eschwege, J. Brasilien , Neue Bibliothek. Reisenb., 15(2):209 . TYPE LOCALITY: Paraguay , vicinity of Asunción (as restricted by Hershkovitz, 1962:153 ) . DISTRIBUTION: N Argentina and Uruguay , SE Bolivia , W Paraguay , and WC Brazil . SYNONYMS: bimaculatus , bonariensis , dubius , gracilipes , pusillus . COMMENTS: Formerly included hummelincki (See Handley, 1976 ) , musculinus (see Massoia et al., 1968 ), and tener (see species account). Attribution of pusillus follows Hershkovitz (1962 ; also see Osgood, 1943:239 ).