1866.] DR. J. E. GRAY ON THE RHINOLOPHINE BATS. 83 



2. Nose-leaf with a central midrib, the sides of which are extended 

 downwards between and covering the nostrils. Tail none; 

 interfe moral membrane very large. Megadermina. 



14. Megaderma. Nose-leaf divided into two parts by a trans- 

 verse ridge behind the nostrils ; front portion flat on the nose. 

 Teeth 32 ; molars 3/3, premolars 2/2. 



a. The transverse ridge ascending on each side, forming an oval 

 disk. Megaderma. M. lyra. 



b. The transverse ridge bent down in the centre, forming a cordate 

 disk. Spasma. M. spasma. 



15. Lavia. Nose-leaf simple, without any transverse ridge be- 

 hind the nostrils ; the front portion concave, with a raised front edge. 

 Teeth 30; molars 3/3, premolars 1/2. L.frons, 



IV. The nostrils in the front of a deep longitudinal cavity on the 

 nose, with two pairs of lamince on each side of it ; the front 

 ■ pair with a sub spiral fold in front. Tail elongate ; terminal 

 joint with a transverse process on each side, edging the mem- 

 brane. Nycterina. 



The wings from the ankles ; the skull broad ; forehead with a deep 

 circular concavity, truncated in front ; intermaxillary well developed, 

 free on the sides. Cutting-teeth ~ ; upper free from the canines. 

 Chin with two longitudinal ridges enclosing a triangular prominence. 



16. Nycteris. Ears united at the base, very long. Africa. 

 2V. thebaica. 



17. Nycterops. Ears separate, as long as the head. Africa. 



N. pilosa. 



18. Pelatia. Ears separate, very long. Asia. P.javanica. 



The laminae on the sides of the nose-leaves and the glands on the 

 forehead and other parts of the body may be very distinctly seen 

 in the newly born specimens that have been preserved in spirits, the 

 short hair allowing them to be seen more distinctly than in the adult 

 animals. 



The name of trifoliatus was given by Temminck to one species of 

 the genus Jquias ; and two species are distinguished by that author 

 — one as having a nose-leaf like a St. Andrew's cross, and the other 

 as having a nose-leaf like a trefoil ; and they are so figured in his 

 Monograph, ii. t. 30, 31. These forms of the nose-leaf, however, 

 are entirely dependent on the art, or rather want of care, of the 

 animal-preserver ; for the lobes that are expanded to produce them 

 are, in specimens preserved in spirits, and doubtless also in living 

 animals, bent down over the cavity between the nostrils. 



