64 DR. J. E. GRAY ON THE PTEROPINE BATS. [Jan. 23, 



2. Eunycteris. "Wings from the vertebral line ; the part of 

 the wing over the back becoming bald. E. phaiops. 



2. Cuttiny-teeth A/A ; lower in a regular series. Tail-end free. 

 Gland of penis soft. Macroglossina. 



* Head very long and slender ; cutting-teeth in an arched series ; 

 grinders compressed, narrow. 



3. Notopteris. Wings from the vertebral line ; part over the 

 back bald. Head very long and slender. False grinders 1/3. Tail 

 elongate, free. N. macdonaldii. 



A. Macroglossus. Wings from the sides of the hairy back. 

 Head very long and slender. Tail very short. False grinders 2/3. 

 M. minimus. 



** Head moderate ; cutting-teeth in a transverse series ; grinders 



thick. 



5. Xantharpyia. Wings from sides of the hairy back. Head 

 elongate, tapering. Fur short, adpressed. X. straminea. 



6. Eleutherura. Wings from sides of the hairy back. Head 

 short, broad. Fur dense, spreading. E. marginata. 



3. Cutting-teeth 2/2 ; lower crowded before the base of the canines. 

 Tail-end free. Index finger not clawed. Cephalotina. 



7. Cephalotes. Tail short. Upper cutting- teeth broad ; lower 

 truncate. C. peronii*. 



II. Teeth 28; true grinders 2/2, 2/2; false grinders 2/3, front 

 minute, often deciduous. Wings from sides of the hairy back. 

 P enis-y land fleshy . 



A. Cuttiny-teeth 2/2 or 2/0, crowded between the canines. Head 

 short, broad. Nostrils tubular, diveryiny. Harpyiana. 



8. Harpyia. Tail short, end free. False grinders 1/1. H.pallasii. 



5. Cuttiny-teeth A/A ; lower in a reyular series ; false yrinders 1/1. 

 Head, short, broad ; nostrils rather prominent. Glands on 

 shoulder with hair like back. Cynopterina. 



9. Cynopterus. Tail short, end free. C. brevicaudata. 



10. Meg^era. Tail none. M. ecaudata. 



* The accidentally placing of a label, that was intended for a bottle containing 

 Pteropus amplexicaudatus, on a bottle containing Cephalotes has caused some 

 confusion; thus Cephalotes peronii appears under the name of Xantharpyia am- 

 plexicaudata in the ' Voyage of the Sulphur,' and its teeth are described under 

 the name of Pteropus amplexicaudatus in the observations on Notopteris (Proc. 

 Zool. Soc. 1859, p. 36). 



