116 DR. J. E. GRAY ON THE PHYLLOSTOM ID^E. [Feb. 27, 



Tail short, with tip in upper surface of membrane. Front of nose- 

 leaf soldered to the nose. Lower lip with a triangular groove 

 edged on the side with round tubercles. Premolars 2/3". G. 

 soriana. 



20. Monophyllus. Interfemoral membrane distinct, deeply 

 and angularly cut out. Tail very short, free at the tip. Premolars 

 2/3. Lower lip with two small triangular warts. M. redmanni. 



21. Anoura. Interfemoral membrane merely edging the legs. 

 Tail none. Premolars 3/3. Lower lip with two triangular grooves, 

 fringed or bearded on the edges. A. geoffroyi. 



Subsection 2. Head short, broad ; margin of the lip crenated, inner 

 edge bearded. Interfemoral membrane small, angularly cut 

 out, or only margining the legs. Tail none. True grinders 3 3 ; 

 the hinder small, circular, early deciduous or entirely wanting 

 in one or both jaws. 



Tribe 8. Stenodermina. 



These Bats are uearly of the same colour, with a more or less 

 distinct streak on the sides of the crown and cheeks ; some have a 

 dorsal streak. Some of the genera can only be determined by the 

 skull and teeth. 



* Wings from the base of the toes. Interfemoral membrane mode- 

 rate, with the hinder edge angular or arched from the heel 

 to near the pelvis. 



f The palate produced and contracted behind; the hinder nasal 

 opening on a level with the middle of the zygoma. Shoulders 

 without any white tufts. 



X Upper cutting-teeth broad, bifid ; the upper jaw regularly arched 

 on the side ; grinders oblong, transverse. Nasal bone perfect ; 

 nasal aperture entire, transverse. 



22. Arttbeus. Lower lip with a transverse triangular space 

 with three tubercles nearly in a transverse line ; the middle largest, 

 edged on each side with round tubercles. The upper grinders ob- 

 long, transverse, the second smaller than the first, hinder absent ; 

 last lower grinder very minute. A. jamaicensis. 



23. Vampyrops. The lower lip with three round warts sur- 

 rounded by a series of small ones. The upper grinders uearly square; 

 the second rather larger than the first ; hinder minute or wanting. 

 Middle upper cutting-teeth broad, entire. Nose deaf with a lamina 

 behind. V. vittatus. 



*24. Uroderma. " Like Vampyrops ; but upper cutting-teeth 

 broad, bifid. U. personate m." 



