82 MR. R. F. TOMES ON A NEW BAT. [Feb. 24, 



the middle, forming the front of the lip, is an enclosed granulated 

 space. 



The ears are as long as the head, broad and pointed, with the 

 lobular parts much developed, and extending forward almost to the 

 corner of the mouth. Tragus more than half the length of the ear, 

 tapering evenly to a subacute point ; near the base, extenmlly, is a 

 prominent though somewhat obtuse angle, and above this a notch, 

 forming another angle, more acute, but less prominent, than the 

 other ; above the notch there is no angle, but a rounded and slightly 

 prominent part, and from this to the tip the tragus tapers pretty 

 evenly. The auditory opening is partly surrounded (posteriorly) by 

 a prominent fleshy ridge of a lobular form, which will fold forward 

 and completely close the opening. 



The longest finger is composed, as in all the Phyllostomidse, of 

 four phalanges ; the thumb has the two phalanges of nearly equal 

 length. The wing-membrane extends barely to the distal extremity 

 of the tibia, which it crosses over, in front, and is attached to the 

 base of the os calcis, somewhat as in the genus Natalus. 



The tail is long, but composed of only nine joints, and extends 

 the whole length of the interfemoral membrane, as in the genus 

 Vespertilio. The feet are large, with the toes of equal length, and 

 the claws long and hooked. 



The skull in its general outline bears considerable resemblance to 

 that of Macrotis ; but the cerebral region is more elevated, and the 

 facial part more depressed. It is so much depressed just at the 

 posterior boundary of the nasal bones as to occasion a deep hollow 

 or longitudinal pit. The nasal bones are very differently formed to 

 those of Macrotis, being very much arched from the fore to the 

 hinder part. The maxillary bones are considerably inflated between 

 the nasal opening and the orbits. All the facial part of the skull is 

 much less compressed than in Macrotis. 



Dentition:— Inc. I ; Can. i=i; Premol. 5^; Mol. g=i§=32. 



The middle upper incisors are large, flat, and somewhat pointed ; 

 the lateral ones minute and pointed, and with a posterior lobe near 

 the base ; the canines are rather small and acute ; the first premolar 

 is very small, roundish, and with two cusps, the anterior one being 

 the most prominent ; the second premolar is very prominent, and 

 has the same carnassial form which is so common in the Chiroptera. 



The lower incisors are symmetrically arranged, rather small, and 

 .flat, with their edges somewhat lobated ; the canines are slender, 

 straight, and with a distinct cingulum ; the first premolar is smaller 

 than the second, conical, acute, and with a slightly projecting poste- 

 rior lobe near the root ; the second premolar is rather long, angular, 

 and acute, Avith a well-marked cingulum. 



The tongue is thick and short, with six well-marked, transverse,^ 

 curved ridges, which are most distinct on the front part, and behind 

 these are indications of others. All the upper surface of the tongue 

 is clothed with fine points, which are directed backward, like those 

 on the tongue of the Felidse. 



