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 Neotoma (Teanopus) phenax Merriam 1903 Neotoma (Teanopus) phenax Merriam 1903 , Proc. Biol. Soc. Wash., 16: 81 . Type Locality: México , Sonora , Río Mayo, Camoa. Vernacular Names: Sonoran Woodrat . Distribution: SW Sonora and NW Sinaloa , México . Conservation: IUCN – Lower Risk (lc). Discussion: Subgenus Teanopus . Type species of Teanopus , a taxon recognized as genus until reduced to a subgenus by Burt and Barkalow (1942) . Karyotype interpreted as highly derived ( Koop et al., 1985 ); highly differentiated from and cladistically basal to most species surveyed by Planz et al. (1996) using mitochondrial DNA restriction site analyses. See Jones and Genoways (1978 , Mammalian Species, 108).