MAMMALS ()F THK MEXICAN liUUNDAKY 



403 



Border, which constitute a very homogeneous group. At present I am 

 including truei, boylii, and even stephensi (which is near eremicus) in 

 the subgenus Peromyscus. The characters of the feet and tail in this 

 subgenus arc indicated in li,^ r . 7'.). 



Fig. 



Peromyscus leucopvs. a, forefoot; b, hindfoot; c, tail. 



PEROMYSCUS MEARNSII i Allen) 



MEARNS MOTJSE. 



Vesperimus mearnsii Allen, Bull. Am. Mus. Nat. Hist., Ill, No. 2, Art. XX, June 30, 



1891, p. 299 (original description). 

 Sitomys mearnsii, Bryant, Zoc, III, Oct., 1892, p. 214.— Allen, Bull. Am. Mus. Nat. 



Hist., VI, May, 1894, pp. 179-181. 

 P[eromyscus] mearnsii, Attwatee, Bull. Amer. Mus. Nat. Hist., Y, Nov. 8, 1895, p. 331. 

 Peromyscus mearnsi, Elliot, Field Col. Mus., Zool. Sex., II, 1901, p. 132 (Synop. Mam. 



N. Am.). 

 Peromyscus mearnsii, Miller and Rehn, Proc. Bost. Soc. Nat. Hist., XXX, No. 1, 



Dec. 27. 1901, p. 78 (Syst. Results Study N. Am. Mam. to close of 1900). 



Type-locality.— BrovmsYiWe, Texas. (Type, skin and skull, in the 

 American Museum of Natural History.) 



Geographical range.*— This species inhabits the Tamaulipan Trop- 

 ical Tract, in southern Texas, where it has been found, along the 

 Gulf of Mexico, in the strip of country extending from Rockporl to 

 Brownsville. 



Description (based on seven topotypes). — Upper surface dusky 

 grayish-brown, suffused with fawn color, which is strongesl on the 

 sides; under parts pure white in winter, grayish white in summer; 



