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 Phyllotis magister Thomas 1912 Phyllotis magister Thomas 1912 , Ann. Mag. Nat. Hist., ser. 8, 10: 406 . Type Locality: Perú , Arequipa Dept., Arequipa , 2300 m . Vernacular Names: Majestic Pericote . Distribution: Upper Pacific slopes of Andes from C Perú (see Arana-Cardó and Ascorra, 1994) to N Chile . Conservation: IUCN – Lower Risk (lc). Discussion: Hershkovitz (1962) treated magister as a subspecies of P. darwini , a rank inconsistent with records of sympatry ( Pearson, 1958 ) and karyotypic differences ( Pearson, 1972 ; Pearson and Patton, 1976 ). Pearson (1958) arranged definitus as a subspecies of P. magister but later (1972) supported its specific status. Intestinal area and volume compared with P. xanthopygus and related to dietary differences ( Lagos and Bozinovic, 1999 ).