Order Rodentia - Family Geomyidae 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 2 859 870 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Cratogeomys castanops (Baird 1852) [Pseudostoma] castanops Baird 1852 , in: Stansbury, Expl. Surv. Valley Great Salt Lake, Utah , App. C (Zool.): 313 . Type Locality: USA , Colorado , Bent Co., along prairie road to Bent's Fort, near present town of Las Animas. Vernacular Names: Yellow-faced Pocket Gopher . Subspecies: : Subspecies Cratogeomys castanops subsp. angusticeps Nelson and Goldman 1934 Subspecies Cratogeomys castanops subsp. bullatus Russell and Baker 1955 Subspecies Cratogeomys castanops subsp. castanops Baird 1852 Subspecies Cratogeomys castanops subsp. clarkii (Baird 1855) Subspecies Cratogeomys castanops subsp. consitus Nelson and Goldman 1934 Subspecies Cratogeomys castanops subsp. dalquesti Hollander 1990 Subspecies Cratogeomys castanops subsp. excelsus Nelson and Goldman 1934 Subspecies Cratogeomys castanops subsp. hirtus Nelson and Goldman 1934 Subspecies Cratogeomys castanops subsp. jucundus Russell and Baker 1955 Subspecies Cratogeomys castanops subsp. parviceps Russell 1968 Subspecies Cratogeomys castanops subsp. perexiguus Russell 1968 Subspecies Cratogeomys castanops subsp. perplanus Nelson and Goldman 1934 Subspecies Cratogeomys castanops subsp. pratensis Russell 1968 Subspecies Cratogeomys castanops subsp. sordidulus Russell and Baker 1955 Subspecies Cratogeomys castanops subsp. subsimus Nelson and Goldman 1934 Subspecies Cratogeomys castanops subsp. surculus Russell 1968 Subspecies Cratogeomys castanops subsp. tamaulipensis Nelson and Goldman 1934 Subspecies Cratogeomys castanops subsp. ustulatus Russell and Baker 1955 Distribution: SE Colorado and SW Kansas ( USA ) to E Durango and S Coahuila ( Mexico ). Conservation: IUCN – Lower Risk (lc) as Pappogeomys castanops . Discussion: Equalivalent to the 2n=46 cytotype of Berry and Baker (1972) and Lee and Baker (1987) , shown by mitochondrial DNA analysis to be phylogenetically separate from the 2n=42 cytotype of these authors ( DeWalt et al., 1993 a ), which is herein referred to as C. goldmani . Largely coincides to the " excelsus subspecies-group" of Russell (1968 b ) , but contains some taxa in his " subnubilis subspecies-group" (see Davidow-Henry et al., 1989 , Mammalian Species No. 338). However, allocations of some taxa belonging to Russell’s " subnubilus group" to either castanops or goldmani need verification by karytoypic and other character analyses. Grouped with merriami in the castanops species-group by Russell (1968 b ) . Subspecies listed above are those of Davidow-Henry et al. (1989) , except as revised by Hollander (1990) for those in the USA .