MACHATIRODUS. 179 
impressions which characterize the canine in the typi- 
cal Felines; but, in the somewhat aberrant Melis jubata, 
these impressions are also obsolete. 
A portion of the lower jaw of a larger Machairodus, 
from the Sewalik range, shews the beginning of the cha- 
racteristic downward extension of the symphysis, and the de- 
pression on the outside of the ramus for the lodgment of the 
long upper canine. The molar series, which consists, as 
in the typical Felines, of three premolars, the last being 
the sectorial tooth, has a longitudinal extent of two inches ; 
the second molar slightly overlaps the third, which has 
an antero-posterior extent of eleven lines. This portion 
of jaw indicates a species of Machairodus as large as the 
Jaguar: it most probably belongs to an adult of the same 
species as the one indicated by the instructive portion of 
the upper jaw. 
MACHAIRODUS LATIDENS. 
In this island, anterior to the deposition of the drift, 
there was associated with the great extinct Tiger, Bear, 
and Hyena of the caves, in the destructive task of con- 
trolling the numbers of the richly developed order of the 
herbivorous Mammalia, a feline animal as large as the 
Tiger, and, to judge by its instruments of destruction, of 
greater ferocity. 
In this extinct animal, as in the Machairodus cultridens 
of the Val d’ Arno, and the Mach. megantereon of Auvergne, 
the canines curved backwards, in form like a pruning-knife, 
having the greater part of the compressed crown provided 
with a double-cutting edge of serrated enamel; that on 
the concave margin being continued to the base; the 
N 2 
