302 TAPIROIDA. 
manifested by the last molar tooth, which is fortunately 
entire. 
The crown of this tooth has a smaller antero-posterior 
diameter in proportion to its transverse diameter, which 
chiefly depends on the much smaller size of the third or 
posterior ridge, as compared with the corresponding tooth 
in the Cuvierian Lophiodons. 
From the outer extremity of each of the two principal 
transverse eminences of the last molar, (fig. 104), a 
ridge is continued obliquely forwards, inwards and down- 
wards: the anterior one extends to the inner and anterior 
angle of the base of the crown: the posterior one termi- 
nates at the middle of the interspace between the two 
ridges. The anterior principal transverse eminence, al- 
though it has a trenchant summit, as in the known Lo- 
phiodons, yet the edge is more concave, the outer and 
inner extremities rising each into a conical point. The 
posterior transverse eminence is much lower than the an- 
terior one, and is tricuspid; the trenchant margin con- 
necting the outer and imner points does not extend across 
the crown parallel with the anterior ridge, as in the Lo- 
phiodons, but forms an angle posteriorly, the apex being 
developed into a third point, which is the highest, and 
from this point the posterior ridge, or talon, extends 
downwards and outwards upon the back part of the crown 
at ¢. 
Thus the crown of the last molar of the present species 
has the two transverse eminences of a Lophiodon’s molar 
so modified that it supports two pairs of pomts and one 
single point, like the last lower molar tooth of the fossil 
jaw from Lot-et-Garonne, described by Cuvier in the 
‘Ossemens Fossiles, 1822, tom. 11. p. 404; and like that 
from the Puy en Velay, described in the posthumous 
