SIWALIK AND NARBADA PROBOSCIDIA. 
95—276 
extent, and the nasals themselves form a short protuberance. The pterygoids are 
small, and the incisive sheaths diverge to a considerable extent anteriorly. 
Distrihiition . — Dossil remains of this species have been obtained only from the 
sub- Himalayan Siwaliks, and it appears that the geographical range of both this 
and the succeeding species did not extend into Sind, or into Perim Island, or Burma. 
A very large series of the molars of this species are contained in the collection of 
the Indian Museum, but as they do not differ from the beautiful series figured in 
the “ Pauna Antiqua Sivalensis,” none have been figured in this memoir. 
First upper milk-molar . — A specimen of the first upper milk-molar is repre- 
sented of the natural size in fig. 1 of Plate XII of the “ Pauna Antiqua Sivalensis 
this tooth has three ridges and a talon. 
First lower milk-molar. — Of the first lower milk-molar I cannot discover any 
specimen : Dr. Palconer gives the number of ridges in this tooth as three, probably 
from the number in the corresponding upper tooth. 
Second upper milk-molar. — A detached specimen of a second upper milk-molar 
of this species in the Indian Museum (formerly in the collection of the Asiatic 
Society of Bengal, where it was catalogued by Dr. Palconer as belonging to Stegodon 
insignis), has six ridges and a talon: its length is 2‘8 inches, and its greatest width 
1-6 inches. Another specimen of this tooth, in a young cranium in the Indian 
Museum, seems to have only five ridges. 
Second lower milk-molar . — There is no specimen of this tooth in the Indian 
Museum ; the specimen represented in fig. 7 of Plate XII of the “ Pauna Antiqua 
Sivalensis” has six ridges and a talon: its length is 2-4 inches, and its greatest 
width 1’4 inches. 
Third upper milk-molar . — The number of ridges in the third upper milk-molar 
represented in fig. 4 of Plate VI of the “Pauna Antiqua Sivalensis” is six, with 
talons : the length of this tooth is 4‘0 inches, and its greatest width 2’4 inches. A 
specimen in the Indian Museum has seven ridges. 
Third lower milk-molar . — The specimen of the third lower milk-molar repre- 
sented in fig. 8 of Plate XII of the “ Pauna Antiqua Sivalensis,” shows seven 
ridges, with talons : its length is 4-4 inches, and its greatest width 2-4 inches. Of 
two specimens in the Indian Museum, one shows eight ridges, and the other nine. 
The latter specimen was presented by the Boorkee Museum, and is but little worn ; 
it exhibits well the characteristically thick enamel plates, widely separated, and 
enclosed in a large mass of cement. 
First upper true molar . — The germ specimen of the first true molar in the 
young cranium represented in fig. 4 of Plate VI of the “ Pauna Antiqua Siva- 
lensis” exhibits seven ridges, and has a length of 5‘5 inches with a width of 2-7 
inches. I have not seen any other specimens of this tooth ; it is, however, possible 
from the number of ridges in the last milk-molars, that the number of ridges in 
both upper and lower first true molars may sometimes be more than seven. 
