328 MAMMALIA : CHIROPTERA. — L. 
562. VESPERTILIO Linneus. (Lat., bat, from vesper, evening.) 
1079. V. subulatus Say. Lirrte Brown Bart. Face small, 
fox-like, with high forehead and pointed snout; ears large, oval, 
twice the height of the erect tragus; wings naked; interfemoral 
membrane naked except at base; face whiskered; color dull olive- 
brown. L.3. E.9. T. 13. E.N. Am., abundant everywhere ;_ 
very variable. (Lat., awl-shaped.) 
563. VESPERUGO Keyserling & Blasius. (Lat, vesper, 
evening.) 
a. Teeth 86; molars $8. (Vesperides Coues.) 
1080. V. noctivagans (Le Conte). Simver Brack Bat. 
Tragus almost as broad as high, scarcely one-third height of ear ; 
femoral membrane entirely though scantily furred; fur long and 
silky, black, usually with silvery tips to the hairs. L. 3}. EK. 12. 
T. 13. U.S. generally. (Lat., noz, night; vagans, wandering.) 
aa. Teeth 34; molars #3. (Vesperugo.) 
1081. V. georgianus (F. Cuvier). Tragus slender, erect, half 
the height of the ear; upper incisors about equal in size; femo- 
ral membrane one-third furred; dark reddish brown, brighter for- 
wards. L.3. H.9. T.14. Maine to Texas; chiefly southward. 
aaa. Teeth 82; molars #%. (Vesperus Coues.) 
1082. V. serotinus (Schreber). LonG-EARED Bat. Tragus 
never pointed, nearly half as high as ear; wings naked; interfe- 
moral membrane furred at base; ear more or less turned outward ; 
upper lateral incisors small, scarcely visible. L. 3 to 4. E. 12. 
T. 14. Northern hemisphere, widely diffused; the American form, 
var. fuseus Beauvais, is said to be rather smaller than the European. 
(Eu.). (Lat. of evening.) 
564. NYCTICEJUS Rafinesque. (vv&, night.) 
1083. N. crepuscularis (Le Conte.) TwiLricut Bat. Ears 
small, wide apart; a small wart above eye; fur rather scanty. 
Dark fawn color above, passing into brownish below. L. 3}. E. 9. 
T. 13. Penn. to Mo. and 8. W., common. (Lat., of twilight.) 
565. ATALAPHA Rafinesque. 
1084. A. noveboracensis (Erxleben). Rep Bar. Fur long 
and silky, reddish brown, mostly white at tip; lips and ears not 
edged with black; a whitish tuft at base of thumb. L. 33. E. 12. 
T. 13. U. S. everywhere, very abundant; known by its reddish 
color. (Lat., of New York.) 
1085. A. cinerea (Beauvais). Hoary Bat. Rich chocolate- 
brown, overlaid with white; lips and ears marked with black. L. 
5. E.14. T. 21. U.S., rather northward, rare. (Lat., ashy.) 
