174 PROCEEDINGS OF THE ACADEMY OP 



On three nsw species of VESPERTILIONID^. 

 BY JOHN LECONTE. 



The two first species described below, were handed to me by our associate 

 Dr. Mitchell, as coming from New Granada in Central America. The other I 

 received from JVlr. Cassin, who informed me that it was given to him as a na- 

 tive of Peru. 



I have not been able to discover that they have ever yet been described by 

 any naturalist, at least our very extensive library furnishes no book in which 

 any thing like them is mentioned; therefore I do not hesitate to consider them 

 as new. Should they prove not to be so, they are willingly and freely given 

 up to the naturalist who has been so fortunate as to see them before me ; with 

 a regret, however, that I have been guilty of adding a synonym to that mass of 

 rubbish accumulated by the negligence or design of others. 



Phyllostoma ttnicolor. 



Upper fore teeth 2 — 2 ; the exterior ones very small, scarcely perceptible in 

 the living animal ; the two intermediate ones somewhat serrated at the base, 

 but converging at the point so as to meet; lower four approximate, crowded, 

 emarginate. Head large ; snout elongated ; nose-leaf sessile, but appearing 

 pedicellate from the inflexion of the sides of the base, ovato-lanceolate, entire, 

 with two perpendicular striae, the included portion rather tumid ; horse-shoe 

 (as it is called) or addition to the base of the fore part with five blunt teeth 

 on each side on the outer edge. Upper and under lip with a row of small warts 

 in front. Ears ovate, blunt, with a slight exterior dilatation of the hinder part 

 of the base, orillon triangular, more or less dentate on the outer edge. Tail 

 none. Interferaoral membrane very narrow, very deeply and roundly emargi- 

 nate, being little more than a kind of narrow membranous wing between the 

 legs, with a small interior basal tooth, formed by the protension of the tarsal 

 bone. 



Color uniform both above and beneath, dark brown, almost black ; hair fine 

 and soft ; membrane black, naked, except along the arms, where it is clothed 

 with hair. 



Inhabits New Granada. 



Length 5-3 inches ; head 1-35 ; ears -5 ; orillon -2 ; nose-leaf -4 ; tarsal bone *2 : 

 width of the interfemoral -15 and -2. Extent 11'6 inches. 



Phyllostoma minus. 



Teeth as in the former species. Head large ; snout somewhat elongated. 

 Nose-leaf sessile, triangular, entire, somewhat elongated at the point, horse-shoe^ 

 entire on the edges. Ears ovate, thin, rounded on the front, straight on the 

 hind margin ; orillon oblong, with a few teeth near the base. Tail none. In- 

 terfemoral tolerably wide, deeply emarginate, with a small interior basal tooth 

 formed by the protension of the tarsal bone. 



Color above black, beneath with a slight tendency to mouse color. Mem- 

 brane entirely naked, black. 



Inhabits with the former. 



Length 2-5 inches ; head -9 ; ears -6 ; orillon -2 ; nose-leaf -3 ; tarsal bone -3 ; 

 width of the interfemoral •45. Extent 10-8 inches. 



yeSPERTILIO PERDVIANUS. 



Dentition the same as in V. macrotes. 



Hair brown, above of one color, beneath tipped with greyish white. Face 

 nakedish, black, nose bilobed. Ears ovate, broad, blunt, naked, black, much 

 longer than the head ; orillon long, knife-shaped, the inner edge convex. Mem- 

 brane very thin, naked, brown; interfemoral including the tail, except the two 

 last joints. 



[July, 



