668 HEMIDERMA. 
Ears moderate; muzzle rather narrow; interorbital constriction 
considerable; superior outline of skull concave; nose-leaf moderately 
developed; a V-shaped groove in the center of the chin inclosing a 
wart, and having one also on the outside of groove; tail short, in- 
closed in interfemoral membrane; wing membrane attached to end of 
tibia; angle of ridge of molars obtuse; cingulum of upper molars with 
one interior tubercle. 
Fig. 141. HEMIDERMA PERSPICILLATUM. 
No. 7944 Am. Mus. Nat. Hist. Coll. 
Twice nat. size. Incisors enlarged 5 times. 
KEYS RO GEE SPP Grins: 
A. Muzzle conical: ear moderate: tail in base of 
membrane. 
a. Large wart in V-shaped groove on chin, mar- PAGE 
gined by warts; forearm, 4omm........ H. perspictillatum 668 
b. Warts on chin in three rows, those in middle 
thedlarsest forearm 32) mami. 05 ae ee H.castaneum 670 
628. perspicillatum Linn., Syst. Nat., 1, 1758, p. 31; 1, 1766, Pugh 
brevicauda (Phyllostoma), Wied, Schinz. Thierreich, 1, 1821, p. 164. 
