LVII. 



Big Brown-bat, House-bat, Serotine Bat or 

 Carolina Bat. 



Eptestcus fuscus (Beauvois). 



(G. Eplen, to fly; oikos, house, i. e., house-flyer; L. juscus, brown.) 



Vespertila fuscus Beauvois, 1796, Cat. Peale's Mus., Phila- 

 delphia, p. 14. 



Eptesicus fuscus Mehely, 1900, Monogr. Chir. Hung., 

 p. 208. 



Type Locality.— Philadelphia, Pa. 



French Canadian, la Chauve-souns brunne. 



In addition to the Family and sub-family characters, the 

 genus Eptesicus (Rafinesque, 1820) has 2 mammae, the basal 

 third of tail-web hairy, ears medium and somewhat pointed, 

 and teeth thus: 



T 2-2 i-i i-i , ^-^ 



Inc. — -; can. ; prem. ; mo\.^^-^=T,z 



3-Z I-I 2-2 z-3 



The size of E. fuscus is distinctive among American size 

 species of the genus. Length, 4^ to 5 inches (106 to 127 

 mm.); tail, ij to 2iV inches (38 to 52 mm.); forearm, i| to 

 i| inches (44 to 48 mm.); tibia, about | of an inch (about 19 

 mm.); spread, 12 to 13 inches (305 to 330 mm.). 



Weight of an adult male, \ ounce. weight 



In colour it is wood-brown throughout, paler below; fur colour 

 never silver tipped. (For head, see Fig. 264, p. 1148). 



1177 



