232 TEETH OF RHINOCEROS FROM ILFORD.
from the anterior wall of the hind barrel and is closely approxi-
mated to the hind wall of the front colline, which it does not
quite touch. From the middle of the outer wall no fewer than
four combing plates project, the penultimate of which, counting
from the crochet, is large and massive. The form of the
crochet is more or less rectangular and the combing plates are
disposed in the same general direction with it. There is a very
thick coat of cement on the lower portion of the crown. The
dimensions of this tooth are :—
Greatest anteroposterior length of external wall .. 2.38 inches
Antero-transverse width (at base of crown) .. 2.5 ,,
Fostero-transverse width (at base of crown) .. 2.14 ,,
The third specimen is a last true molar of the left upper jaw
and is, unfortunately, badly damaged. Notwithstanding this
mutilation, however, it is of considerable interest. The crochet
is given off at a cornparately open angle and bends flexuously
as it juts into the transverse valley ending off very near the
anterior barrel in a sharp edge. The outer wall gives off three
combing plates which all trend more or less in the same general
direction as the crochet though they converge somewhat towards
it. The valley is still further complicated above the crochet by
a process which projects into it from the anterior barrel evidently
resembling in this respect the tooth from Grays Thurrock
described by Dr. Falconer (Palcrontological Memoirs, vol. ii.,
p. 336). On various portions of the crown remains of a thick
coat of cement may be seen.
From the great complication of the transverse valley in each
of these three teeth, from their relative states of wear and from
the similarity of their appearance, I consider them as belonging
to one individual. From the form of the crochet in the premolar
and the second true molar, the direction of the combing plates,
and from the circumstance of the thick coat of cement which is
seen on all of them I have referred these teeth to the R. hemitoechus,
Falconer. They are cited here because of the extreme compli-
cation of the transverse valley of which they afford a fine illustra-
tion and which is characteristic of many of the teeth of this
species from Ilford.
The specimen described next was submitted to me for
identification by Mr. G. White who obtained it with others from
one of the pits on the Uphall Estate, the sections and fossil
contents of which have lately been described in the admirable