10 NEW-YORK FAUNA. 
its junction with the body. Feet hairy, with five subequal toes. Dental formula: Incisors, 
4; canine, 3; cheek teeth, 12-34. Two of the upper incisors have bilobate tps, with a 
free space between them. 
Color. Above of a uniform black or brownish black, the wing membrane being of a some- 
what lighter color. On the back there is a sort of collar, composed of white or silver-tipped 
hairs surrounding the neck, ascending towards the ears, and descending in some instances a 
short distance down the back. Traces of these white tipped hairs may be observed towards 
the interfemoral membrane. (In one individual, sent to me by the Revd. Mr. Linsley, from 
Elmwood, Connecticut, the whole upper surface was varied with white hairs.) Beneath, 
these silvery hairs are distributed over the breast and abdomen, and more distinctly on the 
sides towards the brachial membrane. 
otal length,--.~- eee row Os Alar extent,.... 10°0'-11°0. 
Wensthiot tail eassaa—e 1:4, 
The Silver-haired Bat is common on Long-Island, and the southern counties of the State. 
As far as it is yet known, Connecticut, and possibly Massachusetts, forms its extreme northern 
range. It has been observed in the Atlantic States as far south as Georgia. ‘The female from 
which the foregoing description was taken, is much larger than the male. In common with 
the other species, it takes refuge during the day in hollow trees. Its history is yet incom- 
plete. 
THE CAROLINA BAT. 
VESFERTILIO CAROLINENSIS. 
PLATE Il. FIG. 1.—(STATE COLLECTION.) 
Vespertilio carolinensis. GEOFFROY, Ann. Mus. Vol. 8, p. 193, pl. 47 and 48. 
Vi id. Le Contr, McMurtrie’s Cuvier, Vol. 1, p. 481. 
Carolina Bat. Cooper, Ann. Lyc. N. Y. Vol. 4, p. 60. Emmons, Mass. Rep. 1840, p. 10. 
Characteristics. Large ; chesnut color above ; forearm longer than the tail. 
Description. Ears large, naked, higher than broad. ‘Tips subacutely rounded, emarginate 
on the posterior edge. 'Tragus long and sublinear, resembling that of the little brown bat, 
but more obtuse at the tip. Interfemoral membrane naked above and beneath, and not in- 
cluding the extreme tip of the tail. The bony processes supporting this membrane are very 
stout, and nearly an inch long. Dental formula: Incisors, 4; canines, 2; cheek teeth, 
6 gg) 
{5 = 32. The two medial incisors notched or bifid towards the tip. 
Color. Jaws and snout dark brown. Body above bright glossy chesnut; beneath of the 
same color, but of a lighter shade, and in some lights appearing as if intermixed with grey. 
Base of the fur brown, with a few hairs of a greyish hue. 
