LOPHIODON MINIMUS. ole 
its exterior basal ridge is stronger: the whole tooth is, 
likewise, smaller by one third than its analogue in the 
permanent series of teeth of the existing Tapirs. 
The difference in the superior size of the anterior talon 
and external basal ridge approximates the fossil tooth 
to the extinct subgenus of Tapiroids, which Cuvier has 
called Lophiodon, as will be evident by comparmg the fossil 
(fig. 108, @ and 4) with the figure of the penultimate molar, 
right side, lower jaw, of the Lophiodon minimus,—a species, 
moreover, precisely corresponding in size with our English 
fossil,—in the ‘ Ossemens Fossiles,’ 4to. 1822, vol. 1. pt. 1, 
‘Animaux Fossiles voisins des Tapirs,’ pl. x. 
More decisive evidence of the special relation of the pre- 
sent fossils to the Lophiodont section of the Tapiroid 
family, is yielded by the smaller tooth (fig. 108, p Q), 
next to be described. This tooth was found close to the 
preceding, in the formation of eocene clay, which immedi- 
ately overlies the chalk at Bracklesham. Compared with 
the recent Tapirs, it presents the same general modification 
of the crown, as does the premolar tooth with which the 
series of the six grinding teeth commences in both Indian 
and American Tapirs. But, in the fossil, the anterior talon 
is by no means so large or so much produced: the second 
eminence is relatively broader: the third transverse emi- 
nence, instead of a concavity, presents a prominence with a 
ridge on each side of its base, and a third intermediate one 
connecting it with the second eminence of the crown: in all 
those characters our fossil agrees more closely with the Lo- 
phiodon, as may be seen by comparing fig. 108, p 2, with 
the tooth 7, fig. 1. pl. i. of the volume of the ‘ Ossemens 
Fossiles,’ above cited, representing the jaw of a larger 
species of Lophiodon. But the question of the subgenus of 
Tapiroid, to which the Bracklesham fossils are referable, is 
