KHINOLOP1IUS. 269 



joins the sella to the anterior portion of the posterior nose-leaf, 

 which, in this genus, is always more or less triangular and terminates 

 behind in a single point, whilst its surface in roost species is divided 

 into cells or hollows by transverse laminae, often divided in the 

 middle. 



This genus may be distinguished by the form of the posterior 

 nose-leaf and also by the deep notch at the base of the outer ear- 

 margin, dividing off' the large antitragus. 



The wings are very large, the metacarpal bone of the fourth 

 finger exceeds that of the second (or index) in length. Basioccipital 

 at base of skull very narrow between the auditory bullac. 



Fig. 81- Skull of RhinolophusferruiH-equinum, X 2. (Blasius, Saugeth. Deutsch!.) 



Dentition: i. ?, c. J^, pm. ?=|, in. jj=|. The first upper preniolar 

 minute, pointed, either in the tooth-row or else external to it be- 

 tween the closely approximated canine and second premolar, which 

 is large. Second lower premolar generally minute and external to 

 the tooth-row. 



The genus Rhinolophus inhabits the temperate and tropical 

 regions of the Eastern hemisphere, including Australia. No less 

 than 13 species out of about 25 known at present are found within 

 Indian limits. 



Synopsis of Indian, Ceylonese, and Burmese Species. 



A. Size large ; forearm exceeding 2 - 5 inches .... JR. luctus, p. 270. 



B. Size moderate; forearm T75 to 2-5 inches 



a. Posterior nose-leaf thickened around a large 



internal subcruciform hollow ; forearm 



1-85 R. ccelophyllus, p. 272. 



b. Posterior leaf -without large internal hollow, 

 a'. Second upper premolar close to canine, first 



premolar minute, external. 

 a". Lower lip with a single median vertical (,P- ** ti - 



groove ; forearm 2 25 -R- ferrum-equmum, 



b". Lower lip with 3 grooves ; forearm 



2 -25 . . R- trayatus, p. 279. 



U2 



