154 MeaniH — Jfainhnid J^onns of Jtlasteni Deermouse. 



at the base of the hair, and the general color above is broccoli- 

 brown in summer, and cinnamon or yellowish wood-brown fine- 

 ly sprinkled with black in winter. 



Peromyscus leucopus leucopus (Rafinesque). 



KENTTTKY nRERMOUSR. 



In summer coated with short liairs: color broccoli-brown above, finely 

 sprinkled with black, sparsely on the sides and thickly in a broad 

 median dorsal area: ears scantily coated, hair brown, with scarcely percep- 

 tible hoary edi^es: eyelids bordered with black: feet scantily coated, the 

 skin appearing between the hairs: tail plainly showing annuli above and 

 below, and so scantily coated that it does not appear distinctly bicolored 

 or slightly penciled at tip: uiiderparts gray partly concealed by wiiite 

 tips to the hairs. 



In iciiitff more heavily coated: color yellowish wood-brown above, 

 white below, with the gray underfur appearing between the white tips 

 of the hairs: tail very slightly penciled, not very sharply bicolored. and 

 with annuli seldom wholly concealed: feet and ears not well coated. 



Measure iiu'iiti^. — Total length. ISO mm.: caudal vertebrae, SO: hind 

 foot, 21: ear above crown. 12. ;i. 



Peromyscus leucopus noveboracensis (Fischer). 



NRW YORK DEERMOUSE. 



In summer the whole animal is more heavily coated than in true leu- 

 copus, the skin of the feet being concealed by the hair; tail bicolor, with 

 annuli usually concealed, and the tip well penciled: ears also a little 

 more heavily coated: upperparts wood-brown instead of broccoli-brown. 



In winter the coat is very full and long: tail moderately penciled, 

 sharply bicolor, heavily coated, with the annuli entirely concealed: 

 ears and feet well coated, the former with hoary edges and almost bushy 

 at base, and the latter pure white: upperparts yellowish w^ood-brown: 

 ears and upperparts generally more decidedly lined with black; pelage 

 of underparts very dense, and white almost to the base. 



Me<(surevients.~\j('\\^^{\-\, 1S5 mm.; tail vertpbr;i', 85; hind foot, 21; ear 

 above crown, 13.;"). 



Peromyscus leucopus minnesotae subsp. nov. 



MINNESOTA DEERMOTTSK. 



Type.—lso. 82,717, United States National Museum Collection. Adult 

 female, collected at Fort Snelling, Hennepin County, Minnesota, Novem- 

 ber 30, 1890, by Edgar A. Mearns. Original No. 1181. 



