299—122 INDIAN TERTIARY AND POST-TERTIARY YERTEBRATA. 
crowns of all the cheek-teeth have been hammered off, with the exception of the 
right carnassial. The partially worn condition of the latter tooth, and the large 
size of the alveoli of the canines, shows that the skull belonged to an adult individual. 
In order to show the distinctness of this skull from either of the preceding 
species it will perhaps be simplest to commence by giving its dimensions, which are 
compared below with those of H. striata , his .: — 
Specimen 
Width of palate at pm. 4 3 - 7 
3 2-8 
,, ,, ,, behind canine ............ 1 *83 
„ at „ 2-12 
Interval between posterior border of palate and anterior border of incisive alveoli . . 5 - 32 
,, ,, inferior border of foramen magnum and the same 9 - 28 
Width across postorbital processes of frontals 279 
,, below ,, 2-39 
Interval between postorbital processes of frontal and anterior incisive border . . . 5-75 
Space occupied by incisors . 1*08 
Interval between canines . . . . 1-18 
,, ,, hinder border of pm. 4 and canine . 3 -46 
,, ,, canine and pm. 2 06 
Length of pm. 1 0‘3 
,, ,, 2 (alveolus) 0-63 
Width ,,,,,, „ 0 - 35 
Length ,, ,, 3 ,, 0-9 
Width ,,,,,, ,, 0-46 
Length ,, ,, 4 1-31 
Transverse diameter ofm.l 0-62 
Antero-posterior 0'3 
,, ,, ,, ,, canine 0-68 
,, ,, „ third incisor 0 - 38 
3-5 
3- 22 
2-0 
2-14 
4- 74 
8-4 
307 
2-06 
4-9 
1- 23 
1-2 
2- 87 
0-42 
0-29 
0-55 
0-38 
0-76 
0- 48 
1- 2 
0-58 
0-26 
0-68 
0-41 
A comparison of these dimensions with those of H. felina and II. colvini given 
above 1 , as well as of the figures of the specimen under consideration with those of 
the former, will leave no doubt that the latter is specifically distinct from both : the 
most marked distinction being in the form of the palate, which is relatively longer 
and narrower. Other important points of distinction will be incidentally alluded to, 
but the differences are so great that it will be unnecessary to institute a rigorous 
comparison between the three types of skull. 
Regarding the dentition of the specimen, it will be seen from the figures that 
the incisors occupy a much smaller space than in either of the preceding species : the 
smallness of this space being mainly caused by the reduced size of the third incisor. 
In these respects the specimen differs from all other species of the genus. The 
canines are relatively large, and their alveoli project unusually outwards. Pm. 1 is 
present, and separated by a considerable interval both from the canine and pm. 2 • 
the specimen in this respect being apparently quite peculiar. The alveoli of the 
remaining cheek-teeth form a nearly straight line; the marked outward bulge 
which occurs in most species at the junction of pm. 3 and pm. 4 being absent; 
although II. eximia comes nearest in this respect. Although the crowns of pm. 2 and 
l pp. 822, 290. 
