NYCTICEJUS. 



13 



latter aud the angle of the mouth a small wart is present. Tra- 

 gus straight on internal, irregularly convex on outer border. Face 

 black ; nostrils simple, not produced, very little emarginated ; sides 

 of face much swollen. Lower jaw has a rather large naked space 

 at chin. Eyes small, with a wart above on either side. Thumb 

 moderate. Membranes blackish-brown, extending to base of toes. 

 Feet rather small, slightly haired above. Interfemoral triangular, 

 moderately ample. Calcaneum slight. Tip of tail exserted. 



The general expression is thus observed to be that of Scotophi- 

 lus, but it differs from that genus in the blackish hue of the mem- 

 branes of ear and skin of face, and in the smallness of the former. 



The fur is rather scanty, with the exception of a small patch at 

 base of the interfemoral membrane ; before and behind there is no 

 hair on the membranes. The lower third of posterior surface of 

 cars is covered with soft hair. The fur is inclined to be woolly ; 

 everywhere it is rather short. That of the back is dark fawn fur 

 the upper half, the lower half being a lighter hue bordering 0!i 

 brown. In front the color is more uniform aud lighter, bein;-- 

 plumbeous at base, light brown at tips. In one specimen, No. 8S2, 

 Georgia, Phila. Acad., the fur runs on to the membranes before 

 and behind midway to the elbow. In another, No. 283, Carlisle, 

 Pa., the coloration in front resembles V. subulatus, Say, that of 

 the back more brownish. 



Measurements. 



