1875.] MR. G. E. DOBSON ON THE GENUS CHALINOLOBUS, 381 
Mr. Edwin Ward, F.Z.S., exhibited a pair of Hippopotamus teeth, 
and made the following remarks :— 
“The Hippopotamus teeth sent for exhibition this evening are 
throught to be probably the largest that have as yet been obtained. 
The dimensions and weight of these two lower canine teeth are as 
follows :—length of each tooth from end to end round outer curve 
30 and 31 inches respectively ; circumference of each 9 and 9 inches 
respectively. Total weight of the pair 15 lbs. 
“These specimens were obtained at St. Lucia Bay, S. Africa, in 
1873, by the Hon. Charles Ellis, to whose kindness I am indebted 
for being enabled to show them to the Meeting.” 
The following papers were read :— 
1. On the Genus Chalinolobus, with descriptions of new or 
little-known Species. By G. E. Dosson, M.A., M.B., 
F.L.S., &e. 
[Received April 23, 1875.] 
The genus Chalinolobus was formed by Dr. Peters for the recep- 
tion of Vespertilio tuberculatus from New Zealand, discovered by 
Forster about 1773, and described in his MSS., which were not 
published till 1844*. This species was redescribed by Mr. R. F. 
Tomes in 1857+ as Scotophilus tuberculatus ; but, although his 
description occupies three pages, it is doubtful whether it would be 
possible to recognize the species from it; for some of the most im- 
portant characters, as the lobes of the lower lip and the large post- 
calcaneal lobes, have not been noticed, and the dentition has been 
incorrectly described. 
While examining some stuffed specimens and skins in the British- 
Museum collection from South Australia and Tasmania, which had 
been labelled “‘ Miniopterus uwustralis” and “Scotophilus morio, 
Gray,” corresponding to the same names in the ‘ List of Mammalia 
in the British Museum, 1843,’ I observed that their dentition corre- 
sponded in all respects with this species from New Zealand; and 
repeated examinations and careful measurements have shown that 
they differ in no respect from it. 
_ This is especially interesting ; for Chalinolobus tuberculatus has 
hitherto been reported from New Zealand only, and was believed to 
be peculiar to that island. The occurrence of this species in Tas- 
mania and South Australia, however, is not very surprising ; for 
New Zealand is not more distant from Tasmania than the Azores 
from the coast of Portugal, and Vesperugo leisleri of Europe is 
certainly also found in the Azores. 
The discovery of Chalinolobus tuberculatus in these dried speci- 
mens led me to suspect that other species from Australia and Tas- 
mania described from skins might belong to the same group also ; 
* ‘Descriptiones animalium in itinere ad maris australis terras per annos 
1772-74, &c., p. 62 (1844), ed. Lichtenstein. 
+ P.Z.S. 1857, pp. 135-138. 
