166 NYCTEETD^. 



Ethiopian Region differ from those of the Oriental in the absence of 

 the minute first upper premolar, and in the shape of the frontal and 

 nasal bones. Prof. Peters has pointed out* that, although M. cor 

 resembles M. spasma in the form of the nose-leaf, yet it is closely 

 connected with M. frons, not only by the absence of the first upper 

 premolar, but also in the greatly flattened and expanded frontal and 

 nasal bones, terminating laterally in broad postorbital processes as 

 in the genus Nycteris. M. frons is readily distinguished externally 

 from all the other known species of the genus by the much greater 

 size of the nose-leaf and its free front margin. 



1. Megaderma Ijrra. 



Megaderma lyra, Geoffroy, Ann. du Mus. xv. p. 190 (1810) ; Blain- 



ville, Osteographie (1839) ; Blyth, Journ. Asiat. Soc. Beny. xi. 



(1842), p. 254, xiii. p. 480 (1844). xx. p. 1.56(18.51); Wagner, 



Suppl. Sdugeth. v. p. 641 (1855) ; Dobavn, P. A. S. B. 1872, p. 208 ; 



Monogr. Asiat. Chiropt. p. 78 (1876), figs, a, 6; Peters, MB.Akad. 



Berl. 1872, p. 195. 

 Vespertilio (Megaderma) carnatica, Elliot, Madras Journ. Sci. x. p. 5 



(1839). 

 Megaderma spectrum, Wagner in HiigeVs Kashmir, p. 670 (1844) ; 



Sup2yl. Schreb. Sdugeth. v. p. 641 (1855). 

 Megaderma schistacea, Hodgson, J. A. S. B. xvi. p. 889 (1847). 



Muzzle long and cylindrical, the lower jaw projecting beyond the 

 upper. Ears considerably longer than the head, conjoined for nearly 

 half the length of the inner margin, oval, broadlj^ rounded-ofP above, 

 outer and inner margins slightly convex, the outer margin termina- 

 ting abruptly midway between the base of the tragus and the angle 

 of the mouth ; tragus very large, bifid, the posterior portion long, 

 narrow, and acutely pointed, tapering towards the tip, the anterior 

 part scarcely half the length, broad, with rounded summit con- 

 tinuous with its convex anterior margin. Nose-leaf long, narrow, 

 truncate above, with straight not converging sides ; its horizontal base 

 circular, with a free margin, forming a concave disk above the ex- 

 tremity of the muzzle, with the openings of the nostrils at the bottom 

 of the concavity ; its anterior surface with a prominent central lon- 

 gitudinal ridge, corresponding to a deep groove on the posterior sur- 

 face of the leaf, expanded below into a circular disk, the margins of 

 which conceal the nasal apertures. The projecting lip has a promi- 

 nent triangular naked space in front, divided by a longitudinal 

 groove (Plate X. fig. 2). 



Wing-membrane from the back of the foot, attached close to the 

 base of the outer toe, or from the space between the outer toe and 

 the second toe ; intorfemoral membrane largo, square behind ; cal- 

 caneum short, feeble ; the very short tail concealed within the base of 

 the interfemoral membrane. 



Fur long and straight, of a peculiar slaty blue colour, paler on the 

 ventral surface. 



« MB, Akad. Berl. 1873, p. 488. 



