MAMMALS 271 



E. f. melanoptenis Stone. Color more reddish: Eldorado County,. 

 California. 



5. Nycteris Borkhausen {Lasiurus Gray). Dentition 1/3, i/i, 2/2,. 

 T,ly, interfemoral portion of membrane densely furred; ears short and 

 round: 12 species, 2 in the United States; these are unusually tolerant of 

 sunlight, often roosting in trees during the day in the full glare of the 

 sun and beginning to feed in the afternoon; number of young 2 to 4. 



.V. horealis (Miiller). Red bat (Fig. 153). Body varying from 

 rufous red to yellowish gray in color, with a white spot on each shoulder, 

 the two spots connected by a white chest band; length no mm.; tail 

 50 mm. ; forearm 40 mm. : eastern and central North America; common. 



Subspecies of N. horealis 



N. h. horealis (Miiller). West to Oklahoma and Colorado. 

 N. b. seminola (Rhoads). Color mahogany brown, slightly grayish l 

 South Carolina to southern Texas. 



Fig. 154. — Teeth of Dasypterus inlermedius, the upper jaw at the left {from Miller). 



N. h. tellotis (H. Allen). Size smaller; color redder: central and 

 southern California. 



A. cinerea (Beauvois). Hoary bat. Body gray in color; length 135 

 mm.; tail 50 mm.; forearm 40 mm.; wings long and pointed: northern 

 North America; southward to central New York, migrating in winter 

 into the southern States. 



6. Dasypterus Peters. Dentition i /3, i /i, i ji, 3 /3; dorsal portion 

 of interfemoral membrane furred on basal half only; ears higher than 

 broad: 3 species in Mexico and the United States. 



D. intermedins (H. Allen) (Fig. 154). Color light yellowish brown; 

 length 145 mm.; tail 65 mm.; forearm 55 mm.: Gulf States and northern 

 Mexico. 



D.floridanus Miller. Color hght yellowish brown; length 129 mm.; 

 tail 52 mm.; forearm 49 mm.: Gulf coast from Florida to Louisiana. 



7. Nycticeius Rafinesque. Dentition 1/3, i/i, 1/2, 2,/ 3] inter- 

 femoral portion of membrane furred at the base only; ears short: 2 

 species, i in Cuba. 



