MAMMALS 305 



kz Proximal fourth of 



foot hairy P. hoylei. 



62 Hind foot 25 mm. or more long. 



fi TaU under 90 mm. long P. gossypinus. 



ii Tail over 90 mm. long P. hoylei. 



d2 Ears ochraceous, like the body P. nuttalli. 



C2 Plantar tubercles 5 P. floridanus. 



b2 Mammae 4. 



Ci Hind foot 19-24 mm. long. 



di In the Great Basin P. crinitus. 



di Along the Mexican border P. eremicus. 



C2 Hind foot 25-29 mm. long P. calif ornicus. 



&2 Length about 100 mm P. taylori. 



P. maniculatus (Wagner). Color brown or brownish gray above, 

 the middorsal region being darker; under parts and feet white; length 

 160 to 200 mm.; tail 70 to 98 mm.; hind foot 19 to 21 mm.; tail and body 

 sharply bicolor: North America from Hudson Bay and Alaska to south- 

 ern Mexico, which is the widest range of perhaps any North American 

 mammal; mostly in woodlands. 



Subspecies of P. maniculatus 



P. m. maniculatus (Wag.). Tail short, averaging less than 

 90 mm. in length: Hudsonian zone of northeastern Canada. 



P. m. gracilis (LeConte). Tail very long; length 190 mm.; tail 96 

 mm.: northern and central New York, northern Michigan, Wisconsin 

 and Minnesota; Canadian zone. 



P. m. abietorum Bangs. Similar to P. m. gracilis but paler and 

 grayer: northeastern Maine to Nova Scotia. 



P. m. nubiterrcB Rhoads. Like P. m. gracilis, but smaller: Alle- 

 ghenies from western Pennsylvania to Georgia. 



P. m. oreas Bangs. Size large; color very dark; length 203 mm.; tail 

 III mm.; hind foot 23 mm.: western Washington from the Columbia 

 River into British Columbia. 



P. m. artemisia (Rhoads). Color brownish fawn: northwestern 

 Wyoming to western Washington and British Columbia. 



P. m. austerus (Baird). Color very dark: coast region of Puget 

 Sound. 



P. m. rubidus Osgood. Like P. m. oreas, but paler and tail and hind 

 foot shorter: coast region from San Francisco Bay to the Columbia. 



P. m. gambeli (Baird). Like P. m. rubidus, but smaller and paler: 

 central Washington to Lower California; coast region south of San 

 Francisco Bay. 



