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 Baiomys musculus (Merriam 1892) [Baiomys] musculus (Merriam 1892) , Proc. Biol. Soc. Wash., 7: 170 . Type Locality: México , Colima , Colima . Vernacular Names: Southern Pygmy Mouse . Synonyms: Baiomys brunneus (J. A. Allen and Chapman 1897) ; Baiomys grisescens Goldman 1932 ; Baiomys handleyi Packard 1958 ; Baiomys infernatis Hooper 1952 ; Baiomys nebulosus Goodwin 1959 ; Baiomys nigrescens (Osgood 1904) ; Baiomys pallidus Russell 1952 ; Baiomys pullus Packard 1958 . Distribution: SW Nayarit and C Veracruz , México , to NW Nicaragua , excluding Yucatán Peninsula and Caribbean tropical lowlands. Conservation: IUCN – Lower Risk (lc). Discussion: See Packard and Montgomery (1978 , Mammalian Species, 102).