141 



No. 1. No. 2. No. 3. 



a in a in a in 



Length of the head and hody 2 6 2 4 2 4 



of the enclosed part of the tail. .03 03 03 



of the free part of the tail 3 3 2\ 



of the head 1 0£ 11| 11 



of the fore-arm 1 9£ 1 7 18 



of the longest finger 3 2 11 2 1 1£ 



of the fourth finger 2 6 2 4 2 4 



of the thumb 5 4| 4 



of the tibia 8 7 7 



of the foot and claws 7\ 6 6 



Expanse of wings 12 1110 11 6 



The following are the dimensions of the skull extracted from the 

 specimen which has supplied the measurements given in the second 

 column of the above Table : — 



a in 

 Length from the occipital crest to the anterior of the maxil- 

 lary bones 9i 



Breadth across the zygomatic arches 5 



Length of the nasal bones 3 



Greatest breadth of the nasal bones 1 \ 



Length of the dentinal series in the upper jaw 4 



Breadth between the two outer cusps of the two posterior 



molars 3^ 



Breadth between the points of the two upper canines 11 



Total length of the lower jaw 6i 



Length of the dentinal series in the lower jaw 4 



Breadth between the outer cusps of the two posterior molars 2f 



Breadth between the points of the lower canines 1 



In summing up the characters of this singular species (as far as is 

 known, the sole representative of the genus), several affinities not 

 usually associated are manifest. Thus in the form of the tail, and 

 the way in which it perforates the interfemoral membrane, it bears 

 strong resemblance to the genus Taphozous, whilst the strength and 

 form of the hinder limbs, but more especially the form and implan- 

 tation of the canine and incisor teeth, would seem to indicate an affi- 

 nity with the genus Molossm (Nyctinomus), both of these genera 

 being representatives of the family Noctilionina. Again, on exami- 

 ning attentively the forms of the ear and tragus, we shall be struck 

 with the great resemblance which the latter bears to that of some of 

 the examples of the genus Vespertilio, and the former, although dif- 

 fering considerably from the ear in Vespertilio, bears nevertheless a 

 greater resemblance to it than perhaps to that of any other genus. 

 But there is another peculiarity to which I have already alluded, 

 which is deserving of especial notice — the presence of four bony pha- 

 langes in the second finger — a peculiarity in which it resembles the 

 PhyllostomidcB or Leaf-nosed Bats of the New World, that number 

 being one of their characteristics ; whilst in all the Old World genera, 



