90 Dr. J. E. Gray on the Genera of Vespertilionide. 
head flat ; skull thick ; brain-case oblong, scarcely raised above 
the face. 
(1.) Scotophilina. The nostrils simple, pierced in the front 
of the nose, with a very short groove behind them. 
* Upper cutting-teeth close together towards the canines. 
Pp g g 
1. Scorornitus. Wings to the ankles; interfemoral mem- 
brane nearly bald. 
Upper cutting-teeth 2.2; false grinders 4.4. Scotophilus. 
Upper cutting-teeth 2.2; false grinders 3. Vesperugo. 
Upper cutting-teeth 1.1; false grinders 3. Philocryptus. 
2. AraLapHa. Wings to the ankles; interfemoral membrane 
very hairy above. Upper cutting-teeth 1.1. 
Upper cutting-teeth 1.1; false grinders $. Lasiurus. 
Upper cutting-teeth 1.1; false grinders 3. Atalapha. 
3. Vesperus. Wings to the base of the toes. 
Upper cutting-teeth 2.2; false grinders +. Vesperus. 
Upper cutting-teeth 2.2; false grinders a Pipistrellus. 
Upper cutting-teeth 1.1; false grinders }. Nyeticejus. 
** Upper cutting-teeth separate from the canines and also in front. 
‘Pp g ep 
4. Pacnuyomus. Scotophilus pachyomus, Tomes. 
(2.) Romiciana. Nostrils in front of long, simple-edged 
grooves, which converge and unite behind on the centre of 
the nose between the swollen cheeks. 
5. Romicta. 
2. Ears separate, lateral; face elongate, narrow, hairy ; forehead 
convea, hairy ; skull with a swollen brain-case and narrow face. 
(3.) Vespertilionina. Cutting-teeth close to the canines. 
6. Traxatitius. Wings to the upper part of ankles; feet 
large, free. Upper cutting-teeth 2.2; false grinders 3. 
Interfemoral membrane nearly bald. Tralatitius. 
Interfemoral membrane very hairy. Capaccinus. 
7. VesPERTILIO. Wings to the base of the toes; feet bald. 
Upper cutting-teeth 2.2; false grinders 3. 
8. HarpyrocePHatus. Wings to the base of the toes ; feet and 
interfemoral membrane hairy; nostrils rather produced; false 
grinders 4 adult, 3 young. 
9. Keritvouta. Wings to the base of the toes; feet hairy 
above. Upper cutting-teeth 2.2; false grinders 3. 
10. Murina. Wings to the tips of the toes; nostrils rather 
prominent. Upper cutting-teeth 2.2; false grinders 2. 
(4.) Natalinia. Upper cutting-teeth in pairs, separated from 
