Peromyscus caniceps Burt 1932

Wilson, Don E. & Reeder, DeeAnn, 2005, Order Rodentia - Family Cricetidae, Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 2, Baltimore: The Johns Hopkins University Press, pp. 955-1189 : 1065

Peromyscus caniceps Burt 1932

Peromyscus caniceps Burt 1932 , Trans. San Diego Soc. Nat. Hist., 7: 174.

Type Locality: México, Baja California Sur, Monserrat Isl; 25°38'N, 111°02'W.

Vernacular Names: Monserrat Island Deermouse.

Distribution: Known only from Monserrat Isl.

Conservation: IUCN – Vulnerable.

Discussion: P. eremicus species group. Although membership in Haplomylomys is generally recognized (Avise et al., 1971; Burt, 1932; Hooper, 1968), nearest kin and specific stature unresolved. Affinity to P. eva highlighted by Lawlor (1971 b), who suggested its possible ranking as a subspecies thereof, but later (1983) maintained it as an insular species. Strongly and about equally differentiated from examples of P. eva , P. eremicus , and P. fraterculus based on allozymic comparisons by Avise et al. (1974). Listed, without explanation, in the crinitus species group by Hall (1981). Reassigned as a subspecies of P. fraterculus based on mitochondrial DNA similarity by Hafner et al. (2001). Nevertheless, the bacular contrasts to P. eremicus and P. fraterculus , as recorded by Lawlor (1971 b), are impressive and recommend additional morphological and molecular comparisons that include Burt’s (1932) original type series, reference samples of P. eva and P. fraterculus , and the recent vouchers utilized by Hafner et al. (2001). See Alvarez-Castañeda et al. (1998, Mammalian Species, 602).