49 
A NEW SPECIES OF BAT FROM SIAM. 
( Hipposideros lylei ) 
ped 
BY OLDFIELD THOMAS. 
Hipposideros lyler, sp. n. 
A large species related to IH. prattz, Thos. 
Size rather less than in H. pratti. General characters of the 
H. armiger group, including the long feet, development of a posterior 
transverse crest behind the normal nose-leaf, and the uninflated fore- 
head of the skull. Nose-leaf similar on the whole to that of H. pratt, 
but the supplementary transverse posterior crest higher, attaining 5 
mm. at its highest point on each side of its median cleft, and less 
heavily haired, but the increase in height may perhaps be due to sex ; 
normal transverse crest similarly high in the centre, sloping down 
Jaterally, its front surface divided by a prominent median and two 
indistinct lateral ridges ; anterior horseshoe much more deeply notched 
in front, the median notch nearly 2 mm. in depth, the horseshoe 
on each side of it forming two forwardly projecting lappets, outside 
which again there are two shallower notches, unknown elsewhere in 
the genus. Hars rather narrower than in pratti. Tibiee and feet very 
long and slender. 
General colour dull buffy or clay-colour, washed with brown. 
Skull similar in its general characters to that of H. pratti 
as opposed to those of H. diadema and armiger; but it is smaller 
throughout, the sagittal crest (though of a male as compared with a 
female ) less developed and less abruptly rising above the the forehead ; 
area of forehead smaller and not quite so flat, the median part above 
the anterior nares slightly elevated, while its postero-lateral portion is 
somewhat concave internal to the well marked supraorbital edges. 
Posterior palate more deeply excavated mesially. Teeth similar in 
general characters, but smaller throughout. 
Dimensions of ‘the type :— 
Forearm 78 mm. 
