1863.] MR. R. F. TOMES ON A NEW BAT. 81 



The following papers were read : — 



1. On a New Genus and Species of Leaf-nosed Bats in the 

 Museum at Fort Pitt. By Robert F. Tomes. 



(Plate XII.); 



In a collection of Bats preserved in spirit, and forming part of 

 the Museum at Fort Pitt, Chatham, which has been submitted to my 

 examination by Dr. Sclater, is one which constitutes a new and well- 

 marked genus of the Phyllostomidce, or Leaf-nosed Bats of the New 

 World. It is more nearly allied to the genus Macrotis than to any 

 other ; but differs from it, among other respects, in having its lance- 

 shaped nose-leaf developed to an enormous extent. I characterize 

 and name it as follows : — 



LoNCHORHiNA, gen. nov. 



Top of the head somewhat elevated ; face depressed ; facial crests 

 complicated, consisting of a very long and pointed posterior leaf, in 

 front of which are two pits, more or less surrounded by prominent 

 fleshy excrescences ; lower lip with a smooth triangiilar space in 

 front; ears long and broad; longest finger with four phalanges ; 

 wing-membrane extending to the distal extremity of the tibia, and 

 attached to the os calcis ; tail extending to the whole length of the 

 interfemoral membrane, as in the genera Macrotis and Vespertilio. 



The posterior lanceolate facial leaf is in this Bat of great length, 

 being fully as long as the head of the animal ; it is pointed, and has 

 a very distinct midrib. In front of this leaf is a deep pit, which is 

 divided into two by a ridge which is continuous with the central rib of 

 the leaf; in the bottom of the pits thus formed are the nostrils, 

 which are small and ovoid. The septum between them is produced 

 anteriorly, and developed into a prominent and trifoliate fleshy ex- 

 crescence, which almost conceals the pits behind ; it has a central or 

 upright lobe, exhibiting outwardly a rounded footstalk, surmounted 

 by a flattened top, the edge of the flattened summit being directed 

 upwards, and having five very slightly prominent, but very distinct, 

 denticulations. Besides this central lobe are two lateral ones, which 

 present a thin edge externally, and are continuous M'ith each other 

 across the bottom of the central one. Where this horizontal ridge 

 runs across the central one, it is produced into a distinct point or 

 tubercle. On each side of the pits, behind the trifoliate leaf, is a 

 prominent, acutely conical, vertical projection about a line in length. 

 Below the trifoliate leaf is a transverse hollow, divided vertically by 

 a faintly marked septum, and below this is another transverse leaf, 

 forming the lower boundary of the hollow ; this leaf is but slightly 

 prominent, and has its ends curved upwards and terminating in two 

 warty excrescences contiguous to the two acute projections near the 

 nostrils. Below this is a flat space, constituting the upper lip. 



The lower lip has a large central space of a triangular form, which 

 is naked, and bounded laterally by a broad, smooth, and somewhat 

 elevated margin ; at its inferior point is a single small wart, and iu 



Proc. Zoqi,. See— 1863, No. VI. 



