Mr, R. F. Tomes on species of Bats inhabiting New Zealand. 395 



produced. Another point of difference occurs in the form of a some- 

 what rounded posterior angle^ something Hke that observable in Fu- 

 ripterus, but more nearly resembling the same part in the jaw of the 

 TJr.sus labiatiis, and, as in the latter instance, very thin in substance 

 laterally. The jaw itself is straight, especially the alveolar margin, 

 which is in a line continuous with the posterior process. 



The canines in the lower jaw are of considerable size, and have a 

 basal lobe behind. They are nearly contiguous, and the incisors, 

 two in number, are placed in front of them, as in some species of the 

 genus Molossus (Nyctinomus), and, as in that genus, are probably 

 lost with age. They are very small, feebly implanted in the jaw, 

 and have their tips trilobed. The next two teeth are of the usual 

 premolar type, such as we find in Vespertilio proper, and they are 

 succeeded by the three molars, presenting no marked peculiarities of 

 conformation. 



Dentition:— In. I; Can. ^ ; Premol. ?=2; Mol. 2=^=^. 



In the following Table of dimensions, column No. 1 has been 

 taken from a large and probably adult specimen in the British Mu- 

 seum, and Nos. 2 and 3 from specimens, perhaps not quite adult, 

 in my own collection. The latter one, having all the bones retained, 

 would furnish the more exact dimensions, but that it is probably im- 

 mature. From it the skull was extracted, from which the above 

 characters have been taken : — 



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



// /// // /// // /// 



Length of the head and body 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|^ 



ofthehead 1 0\ 11^ Oil 



of the fore-arm 1 9^ 1 7 1 8 



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 7i 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 : — 



Length from the occipital crest to the anterior margin of the 



maxillary 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 1^ 



