CONTINUED. 103 
separated from the central, scarcely apparent in the 
first, but large and well-developed in the third. 
This latter tooth wants the interior tuberculous lobe 
of its corresponding analogue above, because the 
narrowness of the under jaw does not permit any 
development in that direction; there seems to be, 
nevertheless, a faint indication of it on the inner side 
of the posterior lateral lobe, almost in contact with the 
carnassier. ‘The carnassier, also, owing to the same 
cause, is of a form essentially different from that of 
the upper jaw. It is along and tolerably thick tooth, 
with a deep transverse depression in the middle, and a 
small furrow on the interior of the first half. This 
first part appears to have originally consisted of three 
small but distinct tubercles, one on the outside and 
two within, separated by the small furrow already 
mentioned. The heel of the tooth consists of a 
single large, flat tubercle, which, in the reciprocal 
position of the Jaws, is opposed to the first superior 
tuberculous tooth: there is no interior tubercle, as 
in the upper carnassier, owing to the restraint im- 
posed upon the development of the lower teeth in 
this direction by the comparative narrowness of the 
under jaw. ‘The single tuberculous tooth is likewise 
influenced by the same cause. Its greatest dimen- 
sions are in a longitudinal direction, and it appears 
equally to have consisted originally of two tubercles, 
separated from one another by a transverse de- 
pression : in other respects it resembles the superior 
tuberculous teeth. 
