MURID^. — CLXXXV. 323 



349. PEROMYSCTJS Gloger. (mipa, pouch; jiwrKos, little 

 mouse.) 



1055. P. michiganensis (Audubon & Bachman). Yellowish' 

 brown, a sooty dorsal band; belly white; feet not quite white; 

 tail bicolor ; hind feet less than f inch. L. i\. T. 1^. Mich, to 

 Dak. and Kan. 



1056. P. nuttalli (Harlan). Golden Mouse. Golden cinna- 

 mon, especially bright on ears ; belly not pure white ; tail anicolor. 

 L. 6. T. 2^. Va. and S. (To Thomas Nuttall.) 



1057. P. leucopus (Rafinesque). Common White-footed 

 Mouse. Deer Mouse. Yellowish brown, grayish or fawn color; 

 ielly and feet pure white ; tail distinctly bicolor ; hind feet more 

 than 1^ inch. The northern form has been called subspec. 

 noveboracensis (Fischer), but the need of separation is question- 

 able. L. 6i. T. 3i. Abundant everywhere in open fields; 

 variable. (KevKos, white ; novs, foot.) 



1058. P. canadensis (Miller). Larger than P. lencopns, longer, 

 more hairy tail, which is always bicolor; young gray. L. 8. T. 4. 

 Graylock, Mass., to Adirondacks and N. In dense woods. 



Subspec. umbrinus Miller. Smaller, yellower, with much dark 

 shading, especially on back and face. L. 7. T. 3|. Lake Ontario 

 to Lake Huron. {Lat., shady.) 



Subspec. abietorum Bangs is recorded from fir forests of Nova 

 Scotia. (^Abies, fir.) 



1059. P. gossypinuB (Le Conte). Cotton Mouse. Larger 

 than P. leucopus. L. 6i. T. 2i. Rusty brown, with a dorsal wash, 

 ashy white below; tail not paler. Cotton fields, S. probably N. to 

 Va. (gossypium, cotton.) 



550. ONYCHOMTS Baird. (ow^, claw; /iOr, mouse.) 



1060. O. leucogaster (Maximilian). Mouse color, snow white 

 below; ears high, furred. L. 5^. T. Ij. Minn, to Kas. and 

 Montana. (XevKos, white ; yaa-Trjp, belly.) 



551. NEOTOMA* Say & Ord. (vios, new ; to/xoj, cutting, 



i. e. rodent.) 



1061. N. pennsylvanica Stone. Wood Rat. Brownish gray ; 

 the sides tawny ; belly and feet all white ; tail scantily hairy. L. 13. 

 T. 5. Hudson highlands to Va. Rare and local. 



1 Representative of the sub-family of Murinse is the Old World genus: 

 Mua Linnseus. (t^ii, mouse.) 



M. decumanus VMas. Brown rat. Wharf Eat. Tail nearly an inch shorter 

 than head and body ; grayish brown above ; paler below; feet dusky whitej 

 fur mixed with stiff hairs; cosmopolitan ; introduced into America about 1775, 



