Order Rodentia - Family Heteromyidae 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 2 844 858 book chapter 0-8018-8221-4 10.5281/zenodo.7316535 Chaetodipus dalquesti Roth 1976 Chaetodipus dalquesti Roth 1976 , J. Mammal., 57: 562 . Type Locality: Mexico , Baja California Sur , 4 mi SE Migriño. Vernacular Names: Dalquest's Pocket Mouse . Distribution: Cape Region of Baja California Sur ( Mexico ). Conservation: IUCN – Lower Risk (lc) as included in C. arenarius . Discussion: Considered a subspecies of C. arenarius by Patton (1993 b ), Williams et al. (1993) , and Patton and Alvarez-Castañeda (1999), with which it shares an identical karyotype ( Hafner and Hafner, 1983 ). However, both mitochondrial DNA ( Riddle et al., 2000 b ) and morphology (D. J. Hafner, pers. comm.) suggest separate species status, although a complete analysis of the relationships of dalquesti to arenarius has not as yet been made.