MAMMALS 307 



P. I. noveboracensis (Fischer). Larger and paler: north-central and 

 eastern States; westward to Kansas and South Dakota; southward to 

 southern Missouri and North Carolina; northward to central Minne- 

 sota, Ontario and Maine. 



P. l.fusus Bangs. Size larger; length 194 mm.: Martha's Vineyard. 



P. I. aridulus Osg. Like P. I. noveboracensis, but paler and larger; 

 length 184 mm.: Kansas to South Dakota and Montana. 



P. I. texanus (Woodhouse). Color darker; molar teeth small: 

 southern Texas and eastern Mexico. 



P. I. tornillo (Mearns). Like P. I. texanus, but larger and paler and 

 with heavier: western Texas and eastern New Mexico. 



P. I. arizonce (Allen). Like P. I. tornillo, but darker: southeastern 

 Arizona and southwestern New Mexico. 



P. I. ochraceus Osg. Color ochraceous buff: eastern Arizona. 



P. gossypinus (LeC). Cotton mouse. Color rufescent cinnamon 

 above; under parts heavily mixed with blackish; tail not distinctly 

 bicolor; feet white; length 181 mm.; tail 81 mm.; hind foot 23 mm.: 

 southeastern and south-central States. 



Subspecies of P. gossypinus 



P. g. gossypinus (LeC). Coast region and pedeplain of southern 

 States from Virginia to central Louisiana, except peninsular Florida. 



P. g. megacephalus (Rhoads). Larger and paler: northern Alabama 

 and western Tennessee to eastern Oklahoma and Texas and western 

 Louisiana. 



P. g. palmarius Bangs. Small and paler: peninsular Florida. 



P. boylei (Baird). Color light brown above; feet white; tail long, 

 equal to or longer than the head and body; length 197 mm.; tail 103 

 mm.; hind foot 2 2, mm. : southwestern States and Mexico. 



Subspecies of P. boylei 



P. b. boylei (Baird). West slopes of the Sierras from Yosemite to 

 Mount Shasta, thence along the east slope of the Coast Range southward 

 to San Francisco Bay. 



P. b. rowleyi (Allen). Like P. b. boylei, but paler: mountains' of 

 southern California to western Texas; southern Nevada, Utah and 

 Colorado. 



P. b. attwaieri Allen. Like P. b. boylei; hind foot larger: central 

 Texas to Arkansas and Missouri. 



