44 PEROMYSCUS. 



1 '.vipito-nasal length.* 25.7; Hensel, 14.2; zygomatic width, 12.7; 

 intertemporul width, 4.5; length of nasals, 10; length of upper molar 

 series, 4.3; length of mandible, 8.7; length of lower molar scries, 3.8. 

 Ex type in United States National Museum. 



It is worthy of consideration whether, on account of the great 

 differenee in color and size, and the northern habitat, this mouse is 

 not entitled to full specific rank, instead of being classed as a subspecies. 



Genus Peromyscus (60). 



Subgenus Baiomys. 



Peromyscus taylori subater Bailey. 



Peromyscus taylori subater Bailey, N. Am. Fauna, No. 25, 1905, 

 p. 102. 



Type locality. Bernard Creek, near Columbia, Brazoria County, 

 Texas. 



Genl. Char. Similar to P. taylori, but darker. 



Color. Entire upperparts sooty-gray; underparts buffy. Ex 

 type in United States National Museum. 



Measurements. Total length, 91; tail, 37; hind foot, 15. Skull: 

 Occipito-nasal length, iS.i; Hensel, 13.2; zygomatic width, 10; 

 intertemporal width, 3.6; length of nasals, 6.3; length of upper molar 

 series, 3; length of mandible, 7.7; length of lower molar series, 3.1. 

 Ex type in United States National Museum. 



Peromyscus taylori analogus Osgood. 



Peromyscus taylori analogus Osgood, N. Am. Fauna, No. 28, 1909, 

 p. 256. 



Type locality. Zamora, Michoacan, Mexico. 



Genl. Char. Similar to P. 1. subater, darker than P. paid us. 



Color. Upperparts blackish sepia; flanks sepia; underparts slaty 

 gray, washed with wood-brown; hands, feet and toes dusky brown 

 and grayish; tail, black above, paler below. Ex type in United 

 States National Museum. 



Mi-iisufcini-nl.f. Total length, no; tail, 48; hind foot, 14; ear, 



9.9. Skull: Occipito-nasal length, 17.5; Hensel, 13.4; zygomatic 



width, 9.7; intertemporal width, 3.4; length of nasals, 5.5; length of 



upper molar series, 3.3; length of mandible, 8.1; length of lower molar 



rie . 2.6. Ex type in United States National Museum. 



