MAMMALS OF MINNESOTA. aL 
the tip to a darkish-red, in some instances to a brighter red, 
more rarely to a beautiful chocolate. The point is generally 
white. The color of the membranes is a rich brown, border- 
ing on a yellowish-brown, above the head. The ears and lips 
are marked with yellow in the same manner as in the next 
species (L. cinereus) they are marked with black.” 
Dr. Allen notices a tendency on the part of northern speci- 
mens to be constantly darker, the chocolate or dark red pre- 
dominating, while toward the south the pelage is generally of 
a brighter hue. 
Mr. J. A. Allen affirms that there isa well marked sexual 
distinction, males being uniformely lighter in color. ‘‘Ina 
series of about twenty Massachusetts skins, nearly all marked 
for sex by the collector, all the males are of a beautiful light, 
bright, yellowish red, with scarcely a trace of the apical white; 
the females, though somewhat more variable, «re universally 
darker, the light 1ed of the males being replaced in these by 
dark russet, which is more or less obscured by tne whitish tips 
of the fur.” 
Mr. Allen inclines to the belief that the following species is 
merely a variety of the present one. At least, they are very 
similar and extremely variable. 
I regret that no opportunity has been afforded to compare 
the osteology of the two species, but probably the description 
given will apply with very slight exception to this form. 
Length 1.§9-2.0, tail 1.9-2.0, fore arm 1.6, tibia 0.9, longest 
finger 3.5, thumb, 0.45, ear 0.5, tragus 0.3, expanse of wings 
12.0. 7 
This is a widely distributed species not very common in Min- 
nesota. 
Lasiurus cinereus BEAUVOIS, SP. 
HOARY BAT. 
Vespertilio cinereus PALISOT DE BEAUVOIS. Cat. Peale’s Mus. 1796. 
LECONTE. Proc. Phila. Acad. Sci., 1855. 
Vespertilio pruinosus SAY. Long’s Exped. to Rocky Mts., 1823. 
HARLAN. Fauna Amer., 1825; Med. and Phys. Researches, 
1831. 
GODMAN. Amer. Nat. Hist., 1826. 
RICHARDSON. Fauna Bor. Am., 1829. 
CooPpER. Ann. Lyc. N. Y. iv, 1837. 
DEKAy. Nat. Hist., N. Y. (Zool.), 1842. 
Scotuphilus pruinosus GRAY. Mag. Zool. and Bot. ii,, 1838. 
