THE FAMILIES AND GENERA OF BATS. 
137 
KEY TO THE GENERA OF GLOSSOPHAGINAE. 
Molars |A. 
Lower premolars 2-2 Leptonycteris, p. 142. 
Lower premolars 3-3 Lichonycteris, p. 143. 
Molars 
Upper premolars 3-3. 
A very rudimetary tail concealed in base of interfemoral mem- 
brane; zygomatic arch slender, but definitely ossified; outer 
upper incisor subterete; anterior upper premolar nearly in con- 
tact with canine Lonclioglossa, p. 140. 
No external tail ; zygomatic arch incomplete or partly ossified ; 
outer upper incisor with section of crown conspicuously ellip- 
tical ; anterior upper premolar separated from canine by space 
equal to length of its base Anoura, p. 139. 
Upper premolars 2-2. 
Lower incisors well developed in adult. 
Upper incisors showing no marked contrast in size ; lower in- 
cisors with broad, flat crown ; zygomatic arch complete. 
Glossophaga, p. 137. 
Upper incisors showing marked contrasts in size; lower in- 
cisors with narrow trenchant crowns ; zygomatic arch in- 
complete ; Lonchophylla, p. 139. 
Lower incisors minute or absent in adult. 
Zygomatic arch complete ; lower incisors usually present in 
adult, but very minute .Monophyllus, p. 139. 
Zygomatic arch not complete ; lower incisors absent in adult. 
Pterygoids convex on inner side, the hamular processes 
not in contact with audital bullae Hylonycteris, p. 142. 
Pterygoids deeply concave on inner side, the hamular 
processes in contact with audital bullae. 
Choeronycteris, p. 141. 
Genus GLOSSOPHAGA Geoffroy. 
1818. Glossophaga Geoffroy, Mem. Mus. d’Hist. Nat. Paris, IV, p. 418 
(soricina) . 
1838. Phyllophora Gray, Mag. Zool. and Bot., II, p. 489 ( amplexicaudata= 
soricina). Not of Thunberg, 1812. 
1847. Nicon Gray, Proc. Zool. Soc. London, p. 15 (caudifer= soricina) . 
1878. Glossophaga Dobson, Catal. Chiropt. Brit. Mus., p. 499. 
1898. Glossophaga H. Allen, Trans. Amer. Philos. Soc., n. s., XIX, p. 240. 
Type-species. — V espertilio soricinus Pallas. 
Geographic distribution . — Warmer parts of America, north to 
central Mexico, and in the West Indies to Jamaica. 
Number of forms . — Six species of Glossophaga are now recognized. 
Characters . — Dental formula (Plates III, IV, fig. 2) : 
-2 3. 1. - -34567 .2-2 1-1 2-2 3-3 , 
12-1.-2 34:6 6 7 *2-2’ c 1 - V 3 - 3 ’ m 3 - 3 -34- 
