GLOSSOPHAGA. CHGERONYCTERIS. 673 
Measurements. ‘‘Length of forearm, 38; tibia, 13.5; foot, 9.5; 
ear, 13.5; length of skull, 22.5; of rostrum from interorbital constric- 
tion, 11; width of braincase, 9.2; of rostrum at canines, 4.’’ (Rehn.) 
The bats of the next genus, which conclude the group, are noted 
for the length of their muzzles, which exceed all those of the other 
species of the GLOSSOPHAGA. 
151. Choeronycteris. 
2—2, a 33 Sheng ean 
ees Cas) I ree Me eo 36. 
Cheeronycteris ‘“ Licht,,” Tschudi, Faun. Peruana, 1844, p. 70. 
Type Cheronycteris mexicana Tchudi. 
Upper incisors in pairs, separated by a wide diastema, inner ones 
smaller than the outer; molars without W-shaped cusps; first upper 
premolar absent; zygomatic arch wanting; muzzle long; nose-leaf as 
in Leptonycterts; interfemoral membrane large. 
KEY TO THE. SPECIES. 
A. Size large; calcaneum shorter than the foot. PAGE 
Nigel iui coke sale Besa a CL area a nme eee C. mexicana 673 
B. Size small; caleaneum longer than the foot. 
a, Porcarm 30 mim. rontrum lone. odo. sali a C.minor 674 
b, -Porearm’ 33:5mni.; rostrum Shorter... ou... 5 C. godmani 674 
Fia. CXVII. CHCERONYCTERIS MEXICANA. 
ex Dobson, Cat. Chiroptera. 
632. mexicana (Cheronycteris), Tschudi, Fauna Peruana, 1844, p. 
Wao Ol. IRL, Te. A 
Tres Martas Istanps Bart. 
Type locality. Mexico. 
