FAMILY VESPERTILIONIDJE. 11 



Total length, 3-8. Tibial process, 0-9. 



Length of tail, 1-5. Spread, 12-0. 



Tibia, 0-8. 



This species can scarcely be confounded with any other species, unless it may be with the 

 New- York bat ; from this, however, it is distinguishable by its greater size, and its distinct 

 color. The bony processes supporting the interfemoral membrane are so stout and long, as 

 to subtend that membrane, and alter its usual triangular form. 



The Carolina Bat is found along the Atlantic States, from Georgia to Connecticut. I have 

 obtained it from Kings county, and Prof. Emmons has observed it at Albany, in the months 

 of February and March. Its season of torpidity is probably of short duration. 



(EXTRA-LIMITAL.)* 



V. monticole. (Bachman, Proceed. Ac. Sc. p. 92.) Fulvous; smaller than mftzttoMS ; ears shorter ; 



tragus less than half the length of the ear. Virginia. 

 V. virginianus. (Id. ib. p. 93.) Sooty brown, above ash brown; a little larger than the preceding ; 



ears shghtly longer and more acute ; incisors above simple ; interfemoral membrane naked ; a black 



spot at base of the wing. Virginia. 



Genus Molossus, Geoffroy. Head and muzzle very large ; canines varying from § to g^ ; incisors in 

 the upper jaw bifid ; tragus small forward and outside ; interfemoral membrane enveloping about 

 half the tail ; nose simple. 

 M. cynocephalus. (Cooper, Aim. Lye. Vol 4, p. 65, figure.) Sooty brown; ears crimped on their 



posterior half ; lips thick and pendent ; incisors |. Southern States. 

 M. fuliginosus. (Id. ib. p. 67, figure.) Sooty brown; incisors f ; more than half the tail free. South- 

 ern States. 



Genus Plecotus, Geoffroy. Incisors ^ ; two large fleshy appendages in the form of crests, between 

 the eyes and nostrils ; ears enormously dilated, imited at their bases and fringed on their internal 

 margins ; tail projecting beyond the membrane. 

 P. lecontii. (Id. ib. p. 72, figure.) Dusky; beneath towards the tail, white; tragus less than half the 



length of the ears. Southern States. 

 P. townsendi. (Ac. Sc. Vol. 7.) Ferruginous, beneath reddish ash; tragus half the length of the ears; 

 larger than the preceding. Columbia river. 



• Under this bead, we include short notices of species observed in the United States, or the adjacent regions, but wiiich wo 

 have not seen in tiiis State.' The authority for the species must, of course, rest with their respective describers. 



