290 Dr* A, Hall on the Mammals and Birds 



CLASS MAMMALIA. 



Ord. in. Carnaria. 



Fam, Cheiroptera — Suh gen. Vespertilio. 



Sub gen. char. Incisors |, canines -fi, molars |f or ^\ z=i 32 

 to 36. Upper incisors separated in pairs, acuminate ; anterior 

 molars conical ; posterior ones having two or three trenchant 

 pL/ints in rows with one another. Ears lateral and distinct ; nose 

 simple ; tail long, enveloped in the femoral membrane. Arms» 

 foreanns and fingers elongated, forming with the membrane which 

 occupies their intervals, and thence extended to the tarsi of the 

 hind legs, true wings. Thumbs short, a single joint armed with 

 a claw ; fur soft and thin ; sebaceous glands under the skin of the 

 face) differing in size and shape, according to the species. 



V. pruinosus. Hoary bat of Say. 



V.S.P. Length from tip of nose to tip of tail 5^ inches; 

 length of tail 1|- inch ; alar expanse 14 inches; superior incisors 

 acuminate, and close to the canines ; inferior incisors approxi- 

 mate ; upper canines conical and sharp ; inferior ones slightly 

 lobed at their internal base, both prominent ; molars f with high 

 conical trenchant points. Fur blackish beneath, changing to a 

 dirty yellow, then to a black, and lastly tipped with white. Muz- 

 zle and throat dirty yellow, changing to a brown on the abdo- 

 men, and towards the axilla assuming a dirty white hue, which 

 changes to a brownish yellow, with which the anterior inferior 

 membrane of the wings is covered, as far as the carpus. Upper 

 surface of interfemoral membrane like the back, and the inferior 

 also for about \ next the body. Membrane entirely envelopes the 

 tail. Toes 5, whitish, furred above ; claws black and curved, ex- 

 tremely sharp. Head short ; ears large and round, not so long 

 as the head ; tragus arcuate ; nostrils naked, slightly prominent, 

 divergent. 



(Described from a specimen in the museum of the Natural 

 History Society, Montreal.) 



V. subulatus» Say's bat. 



V.S.P. Length from tip of nose to tip of tail 3 inches ; of 

 tail li inch; of ears f inch; alar expansee 8 inches. Upper in- 

 cisors short, and close to the canines ; lower ones short, bilobed 

 internally ; canines long acuminate ; molars ^^ short, with tren- 



