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 Isothrix Wagner 1845 Isothrix Wagner 1845 , Arch. Naturgesch., 1: 145 . Type Species: Isothrix bistriata Wagner 1845 Synonyms: Lasiuromys Deville 1852 . Species and subspecies: 4 species with 2 subspecies: Species Isothrix bistriata Wagner 1845 Subspecies Isothrix bistriata subsp. bistriata Wagner 1845 Subspecies Isothrix bistriata subsp. orinoci Thomas 1899 Species Isothrix negrensis Thomas 1920 Species Isothrix pagurus Wagner 1845 Species Isothrix sinnamariensis Vie et al. 1996 Discussion: Formerly included pictus (Cabrera, 1961; Patton and Emmons, 1985 ), which Emmons and Vucetich (1998) placed in a new genus, Callistomys (see that account).