QUADRUPEDS. 177 



a. Grinders with flat snmmits. Pteropusidae. 



19. PTEROPUS. Fore-finger with a claw. The mem- 

 brane between the extremities is deeply notched. The 

 tail is either wanting or very short. The fore-finger, which 

 is half as short as the middle one, has three phalanges and 

 a small claw. The other fingers have only two phalanges 

 and no claws. The nose is simple. The ear has no auricle. 

 Tongue rough, with reversed prickles. This genus has 

 been divided into those without a tail, and those that have 

 a very short one. In both sections there are four incisors 

 in each jaw. 



20. CEPHALOTES. Fore-finger destitute of a claw. 



This genus is likewise characterised by the lateral mem- 

 branes of the wings coalescing' on the back with a vertical 

 and longitudinal partition. The only known species is the 

 C. Peronii of GEOFF, from Timor. 



b. Summits of the grinders with conical points. No claw 

 on the fore -finger. 



(A.) The middle finger with three bony phalanges ; the 

 other fingers with only two. 



Nose with appendices. 



a. Nose with warts. 



21. NOCTILIO. Incisors four above, two below. Tail 

 short, and disengaged from the interfemoral membrane. 

 Noctilio Americanus of LIN. 



6. Nose, with a leaf-like process. 



22. PHYLLOSTOMA. The incisors are four in each jaw. 

 On the nose is a transverse membrane. The tongue is 

 rough with papillae towards the end, and is capable of con- 

 siderable extension. The lips are furnished with tubercles. 

 COVIER gives the indications of three sections in this genus. 



vor. IT. M 



