Miscellaneous. 
391 
closed row commencing ‘25 of an inch anterior to the corresponding- 
six molars above, and continuing as far back as the latter. Besides 
these, and separated from them by a concave, descending notch of 
•45 of an inch, just anterior to the anterior mental foramen, or ‘15 
of an inch anterior to the commencement of the symphysis posteriorly, 
is one-half of an alveolus for an additional or seventh molar, which, 
when the specimen was first received, contained a portion of a fang, 
since mislaid. 4'his additional molar in the lower jaw is possessed 
by only one other known genus of Ruminantia, the Dorcatherium 
of Kaup. 
The crowns of the inferior molars are enveloped in the matrix in 
such a manner that they cannot be exposed without endangering the 
specimen. Externally the three true molars present their columns 
as sharply triangular prisms, as in Ovis, &c., and have no intervening 
points or cones, as in Cervus, Dorcatherium, &c. 
The fourth premolar is trilobed externally, each lobe presenting a 
cusp towards the crown. The third and second are compressed, and 
the latter, I can perceive, has a trenchant crown. 
The position of the molars, though resembling that of Dorcathe- 
rium considerably more than that of any other genus of Ruminantia, 
differs materially from it ; for while the teeth reach to the symphysis 
in the latter, in the former they even extend anteriorly to its com- 
mencement. 
From the foregoing description of the teeth, it will be perceived, that 
in the possession of a seventh molar in the upper jaw, in the posi- 
tion of the molars, and in several other minor peculiarities, this genus 
differs from all others heretofore known, and is well characterized, 
and I therefore propose for it the name of “ Po'ehrotherium 
[We omit some further details, and pass to the concluding remarks.] 
These bones belonged to an animal rather less in size than the 
Dorcatherium. 
The species I have designated Wilsoni, in honour of Dr. Thomas 
B. Wilson, a munificent patron of the natural sciences. 
Probable habit of the animal. — From the evidences of considerable 
muscular strength in the posterior part of the inferior maxilla and 
the trenchant crowns of the anterior premolars, it might be supposed 
that the animal was adapted to eating flesh as part of its food, as 
was thought by Cuvier to have been probably the case with the Ano- 
plotherium gracile, a pachydermous animal having very similar cha- 
racters ; but I should think its general structure would entirely pre- 
clude the idea of its having been able to catch living animal prey, 
and doubt very much whether its food could have been other than 
vegetable. The anterior trenchant molars were more probably in- 
tended for cutting branches and twigs of bushes, or tough grasses, 
which afterwards underwent a finer trituration with the true molars. 
The position which the genus should occupy. — Po'ebrotherium in its 
dentition approaches the Ruminantia to the Pachydermata, for in the 
number of the molar teeth and the trenchant nature of the anterior 
TToa, herha, fSpoco, pasco, drjp,fera. 
