213—32 
SIWALIK AND NAEBADA PEOBOSCIDIA. 
Distribution. — Eemains of this species have hitherto only been procured from 
the Siwaliks of the Punjab to the westward of the Jheluin river, and from the 
Manchars (Siwaliks) of Sind. No species of Trilopliodon was known to Palconer 
and Cautley at the time of publication of the “Pauna Antiqua Sivalensis,” 
whose main collections were obtained far to the eastward of the Jhelum (Sutledge 
and Ganges valleys), and from the vast series of mammalian remains collected 
by those writers it may he fairly inferred that the present species does not occur 
in the more easterly Siwaliks. 
Species 2 : Mastodon pandionis, Palconer. Plates XXXIV-V-VI-VII, fig. 3. 
Distory. — This species was named by Dr. Palconer on the evidence of two 
molar teeth in the India House collection said to have been obtained from the Deccan. 
No description of the species was apparently ever published by Dr. Palconer, but in 
his synoptical table of Mastodons given on pages 14 and 15 of the second volume of 
the “Palaeontological Memoirs,” the species is classed by Dr. Palconer among the 
Trilopliodons, in the division characterized by having molars with “ colliculi obtusi 
alternatim mammillati, valliculce interruptce.'^ 
Although no description of the molars of this species was ever published by 
Dr. Palconer, it appears that that writer made a comparison of these molars with 
certain of those of Mastodon angustidens in the collection of the late M. Edouard 
Lartet, the results of which comparison were embodied in a manuscript note. This note 
has been published on page 124 [et seq.) of the first volume of the “ Pala3ontological 
Memoirs,” but unfortunately in such a manner as to give the impression that the 
sjiecimens in M. Lartet’s collection belonged to the same species as the Indian 
teeth, though they really belonged to M. angustidens.^ I have copied the note 
below, and have interpolated in brackets the name of the latter species where it is 
necessary to the proper comprehension of the text. 
“No. 1. — The principal piece is a penultimate molar, upper jaw, left side; so 
determined from comparison with a germ specimen from M. Lartet of an antepenul- 
timate (molar of M. angustidens) . The crown of the tooth is perfectly entire, the 
front ridge alone being a little touched by wear on the inner side ; but the fangs and 
base of the tooth are broken off right across on a line with the termination of the 
enamel shell. It exhibits three well defined ridges, with a thick strong front talon 
and a hind-talon confluent with the last ridge. It is a true and unmistakeahle 
Trilopliodon, the only one yet yielded by India, and very different in its crown 
characters from all the Siwalik, Ava, or other fossil Mastodons of the East. 
“ The general form of the crown resembles very strongly that of Trilopliodon 
angustidens, the principal difference being that the ‘ col ’ of vallecular flanking 
mammillae is stiU more developed than in that species. The crown is traversed, as 
^ The footnote on page 124 of the “ Palseontological Memoirs ” by Dr. Murchison, only adds to the confusion. 
