270 



b'. Second upper premolar separated from 



canine by a space in which the small 



first premolar is placed. 



a". Erect transverse process of sella with 



wing-like lateral expansions above 



nostrils ; forearm 2 R. trifoliatus, p. 272. 



b". No lateral expansions to erect process 



of sella. 



a 3 . Anterior recumbent process of sella 

 expanded, cup-shaped; erect trans- 

 verse process much higher than 

 posterior longitudinal buttress ; fore- 

 arm 2-25 R. mitratus, p. 273. 



6 3 . Anterior recumbent process of sella 



not expanded. 



4 . Transverse and longitudinal erect 

 processes of sella equal in height ; 



forearm 2'2 R. pearsoni, p. 273. 



i 4 . Longitudinal (posterior) process 



the higher. 

 a. Recumbent process of sella broader 



than erect transverse process, 

 a'. Margins of posterior nose-leaf 



concave ; forearm 2 - l R. affinis, p. 274. 



ft'. Margins of posterior leaf [p. 275. 



straight ; forearm 2'05 ...... R. andamancnsis, 



j3. Recumbent process and erect 

 transverse processes the same 



width ; forearm 2 R. jietcrsi, p. 275, 



C. Size small ; forearm less than 1-75 inches. 



a. Ears very large, longer than the head ; fore- 



arm 1-0 R. macrotis, p. 276. 



b. Ears shorter than the head. 



a'. Lower lip with three vertical grooves; 



forearm 1 '45 R. minor, p. 276. 



b'. Lower lip with a single vertical groove ; 



forearm 1'5 R. hipposidems, p. 277 



145. Rhinoloplms luctus. The great Eastern Horseshoe- Bat. 



Rhinolophus luctus, Temm. Mon. Mam. ii, p. 24, pi. 30 (1835) ; 



Hutton, P. Z. S. 1872, p. 694 ; Blyth, Mam. Birds Burma, p. 19 ; 



Dobson, Mon. As. C'hir.p. 39; id. Cat. Chir. B.M. p. 105; Anderson, 



Cat. p. 107 ; Scully, J. A. S. B. Ivi, pt, 2, p. 240. 

 Rhinoloplms perniger, jffcdgs. J.A.S. B. xii, p. 414 ; Blyth, J. A. S. B. 



xiii, p. 484 ; id. Cat. p. 23 ; Jerdon, Mam. p. 23. 



This is the largest known species of the genus. The ears are 

 very large, the tips acuminate and bluntly pointed, the outer margin 

 concave below the tip and divided from the large and long autitragus 

 by a deep re-entering angular notch. 



Nose-leaf greatly developed and peculiar. The anterior leaf very 

 large, projecting over the lip in front and at the sides, deeply in- 

 cised in the middle. Sella expanded on each side of the base of 

 the erect process into a rounded flat disk, one above each nostril. 

 The transverse erect process is much higher than the short longi- 

 tudinal posterior buttress?, the free margin of the latter is rounded. 



