338 Zoological Society : — 



philus. Gray). The top of the nose, in front of the eyes, is rather 

 prominent, and rounds down evenly on all sides to the edge of the 

 upper lip, which if seen from below would describe a half-oval figure. 

 The above-mentioned prominence is furnished with a central longi- 

 tudinal ridge, terminating between the nostrils. These are apical, 

 approximated, and of an ovoid form. They are placed so near the 

 margin of the lip that they might almost be described as situated in 

 it. They do not interfere with the curvature of the outline of that 

 part, being simple perforations. 



The lower lip is furnished with a broadish, naked reflexed edge, 

 divided by a vertical groove in front. Below this is an irregular 

 semicircular double row of warts, studded with bristly hairs, and a 

 larger one beneath at the symphysis menti. 



The ears are rather large, broadest at two-thirds of the distance 

 from their bases. They are furnished with a descending free lobe at 

 the base of the outer margin, which is unattached to the side of the 

 face, somewhat like the lobulus of the human ear. Their extreme 

 tips are directed outwards. 



The tragus is of very peculiar form ; it is supported on a distinct 

 stalk, which springs horizontally from the inside of the auditory 

 opening. From the extremity of this, the tragus rises vertically, 

 and occupies the usual position in the ear. It is short, broad, and 

 somewhat fleshy. The two margins curve to a rather acute tip, 

 which is directed a little inwards. At the outer edge, towards the 

 base, is a descending angular projection. About the middle of the 

 ascending part, the tragus is twisted upon itself, in such a manner as 

 to present only the edge of the upper part to the eye, whilst the 

 basal portion presents its fat surface. From its tip spring a number 

 of fine bristly hairs, straight and long. 



The legs, feet, and os calcis are long, and the toes occupy about 

 one-half of the length of the feet. The tail is very long, equal in 

 length to the head and body ; it consists of seven joints, the terminal 

 one being small. The wing-membranes have a singular mode of at- 

 tachment to the tibia. Viewing the animal from the under side they 

 are seen to proceed from the base of the os calcis, in the form of a 

 narrow rudiment of membrane, extending up the inside of the tibia 

 for a fourth of its length. At this point they cross over the tibia, 

 and pass outwards, forming the posterior margins of the wings. The 

 thumb is rather small, but the wings do not present any other great 

 peculiarities. All the membranes are thickly marked with dotted 

 lines as in Furiptei'iis, the interfemoral membrane having between 

 twenty and thirty. 



The upper incisors are four in number, in pairs, separated from 

 the canines by an interval, and with a space in the middle between 

 the pairs. They are small, of nearly uniform size, and obtusely 

 conical. In the space between them is a prominent horse-shoe- 

 shaped cartilage, a little in advance of them, being a prolongation of 

 the anterior boundary of the palate. Behind this is a transverse 

 prominent palatal ridge, divided in the middle by a notch. 



