Order Rodentia - Family Echimyidae 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 1575 1592 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Callistomys Emmons and Vucetich 1998 Callistomys Emmons and Vucetich 1998 , Am. Mus. Novit., 3223: 3 . Type Species: Nelomys pictus Pictet 1843 Species and subspecies: 1 species: Species Callistomys pictus (Pictet 1841) Discussion: Fossil mandible tentatively identified by Winge (1888) as Lasiuromys villosus placed in Callistomys by Emmons and Vucetich (1998) .