515 PHYLMSTOMIDJ!. 



rounded at the tips ; inner margin convex from the base upwards, 

 outer faintly conves in upper fourth, then concave, again convex, 

 slightly angularly emarginate opposite the upper third of the tragus 

 and terminating abruptly at a short distance in front of its base ; no 

 process from the concave surface of the conch near the tragus as in 

 Phyllostoma hastatum ; tragus much thickened in its inner half, the 

 outer margin thin, with a square-edged projection above its base, 

 succeeded by a projecting tooth, shortly narrowed and acutely 

 pointed above : nose-leaf well developed in front of the nasal aper- 

 tures ; anterior margin free, separated from the muzzle, straight, un- 

 notched ; sides similar, but considerably bent upwards ; the vertical 

 leaf thickened, ovate, and shortly acuminate, with a broad raised 

 longitudinal ridge in front : upper and lower lips margined with 

 small warts and fringed internally with long horizontal papillae ; 

 front of the lower lip with three warts arranged in a triangular 

 space, and bounded laterally and beneath by eight or ten small 

 warts (Plate XXX. fig. 1, nose-leaf and chin, natural size). 



Wing-membrane extending to the metatarsus : iaterf emoral mem- 

 brane angularly emarginate behind to a height about level with the 

 middle of the tibia. 



Pur short but dense, black with a greyish tinge, the base of the 

 hairs paler or even white. In some specimens the face is marked 

 with two longitudinal faint whitish streaks, one on each side, ex- 

 tending from the posterior margin of the nose-leaf above the eye to 

 the crown of the head. In many specimens even these pale streaks 

 are quite absent. Of several female specimens obtained by me in 

 Demerara one only had the white facial streaks very faintly 

 marked. 



The wing-membrane is nearly naked; a few short hairs only 

 appear upon the forearm, and the iuterfemoral membrane is almost 

 devoid of hair. 



Skull broad and short, the distance between the outer margins of 

 the first molars is nearly equal to the length of the palate ; the bony 

 palate extends as far backwards as the middle of the slender zygo- 

 matic arches ; frontal flattened between the slightly developed post- 

 orbital processes ; two small infraorbital foramina placed one above 

 the other. 



Upper middle incisors vertically directed, with broad slightly 

 convex cutting-edges, shortly bifid ; outer incisors very short, 

 scarcely equalling the cingiilum of the canines in vertical extent, 

 with oblique crowns directed inwards and forwards ; canine without 

 basal cusp ; first upper premolar with a very oblique crown, similar 

 to the outer incisor in shape, directed forwards and downwards, 

 with a posterior and external basal cusp ; second upper premolar 

 three fourths the canine in vertical extent, and exceeding it in cross 

 section at the base, with two small posterior basal cusps placed one 

 above the other, like the teeth of a saw ; these cusps become worn 

 down, and disappear in old individuals ; the base of this tooth 

 projects much internally and is concave ; the first molar is very 

 broad (its breadtli equals double its antero-posterior diameter), with 



