48 INDIAN TERTIARY AND POST-TERTIARY VERTEBRATA 
both sides, second, third, and fonth premolars, and first two true molars of right 
side.” Its dimensions are as follows : — 
Length of second premolar 07 
„ of third „ 1*4 
„ of fourth ,, 1'65 
„ of first true molar 1’46 
„ of second „ 2’0 
Width of second premolar 0 - 45 
„ of third „ 0 - 85 
„ of fourth „ l’l 
„ of first true molar 1'05 
„ of second „ 1’2 
Width between second premolars 3’5 
„ „ outer margins of outer incisors 8'65 
Oblique width of outer incisor 1*5 
„ thickness „ 07 
Length of exserted portion 21 
A very similar specimen of the symphysis, showing the alveoli of the median 
incisors, and the broken bases of the large external incisors, is in the collection of the 
Indian Museum. I am unacquainted with its history, though it is evidently from 
the Siwaliks. 
Distribution. — Assuming that the specimens described above are all rightly 
referred to the present species, it would seem that its remains are found throughout 
the sub-Himalayan Siwaliks, from the Ganges to the Indus; its remains are, how- 
ever, of very rare occurrence in the Punjab. In the first volume of this work 
(plate YI, fig. 8) a single lower molar from Sind is referred to this species. Seeing, 
however, that no identifiable upper molars of R. palceindicus have been obtained 
from that district, and taking into consideration the extreme uncertainty of any 
specific determination based upon the evidence of lower molars, it may be doubted 
whether that identification will hold. No remains of the species, as far as I am 
aware, have been determined from Perim Island or Burma. 
Species 3. Rhinoceros platyrhintjs, Ealconer and Cautley. 
History. — The name of this species, like the last, seems to have first appeared 
in the “Eauna Antiqua Sivalensis,” where some imperfect skulls and teeth are 
figured, together with a form of mandible referred to the same species. No descrip- 
tion of the species was ever given by the authors of that work. A note on 
a cranium in the British Museum by Dr. Ealconer, which from its manifest 
inaccuracies was never intended for publication, is quoted in the “ Palaeontologica 
Memoirs,” 1 and will be again referred to below. 
The specimens figured in the “ Eauna Antiqua Sivalensis” (pi. LXXII) are an 
anterior and a posterior portion of a skull (figs. 1, 2), and a penultimate and last 
upper true molar (figs. 6, 7). On plate LXXY of the same work specimens of each 
of the above teeth are figured, of half the natural size (figs. 11, 12). The restored 
1 Voi. I., p. 157. 
