186 PEROMYSCUS. 



Perotnyscus musculus Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 175. Zool. Ser. 

 CoLiMA City Mouse. 



Type locality. Near Colima City, State of Colima, Mexico. 

 Geogr. Distr. States of Colima and Jalisco, Mexico. 



a. Perowyscjis nnisculus bi-unneits Allen & Chapman. 

 Perotnyscus mtiscultis brunneus Allen & Chapman, Bull. Am. Mus. 



Nat. Hist. N. Y., 1897, p. 203. Elliot, Mamm. Middle Amer. 

 & W. Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 176. Zool. Ser. 

 Jalapa Brown Mouse. 



Type locality. Jalapa, State of Vera Cruz, Mexico. 

 Geogr. Distr. State of Vera Cruz. Range unknown. 



b. Peromyscus muscidus ni^rescens Osgood. 



Perotnyscus tnusculus nigrescens Osgood, Proc. Biol. Soc. Wash., 

 XVII, 1904, p. 76. Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 176. Zool. Ser. 

 Sooty Mouse. 



Type locality. Valley of Comitan, State of Chiapas, Mexico. 

 Geogr. Distr. State of Chiapas. Range unknown. 



267. Peromyscus paulus Allen. 



Perotnyscus paulus Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1903, 

 p. 598. Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., IV, Pt. I, 1904, p. 176. Zool. Ser. 

 Tiny Mouse. 



Type locality. Rio Sestin, State of Durango, Mexico. 



Geogr. Distr. Known only from the type locality. . 



Subgenus B. Haplomylomys. 



"Size medium or small; pelage soft and silky ; tail longer than head 

 and body, subterete, rather thinly haired; soles of hind feet naked 

 (in median line) to calcaneum, six tuberculate and paved with minute 

 imbricate scales; skull with cranium rather large and rostral region 

 relatively weak ; first and second upper molars with three salient and 

 two reentrant outer angles at all stages of wear; small secondary 

 tubercles never present between outer primary tubercles ; lower molars 

 correspondingly simple." 



268. Perotnyscus eremicus (Baird). 



Hesperotnys eremicus Baird, N. Am. Mamm., 1857, p. 479. 

 Perotnyscus eretnicus Elliot, Syn. N. Am. Mamm.. F. C. M. Pub., 



II, 1901, p. 136. Zool. Ser. Id. Mamm. Middle Amer. & W. 



Indies. F. C. M. Pub., iv, Pt. i, 1904, p. 191. Zool. Ser. 



