64 
MOLAR TEETH AND OTHER REMAINS OE MAMMALIA. 
connected by transverse ridges, while in Tapirm and its allies, the two outer cones 
are also connected by a longitudinal ridge. In this manner a transition is effected 
from the simple bunodont form through the lopJiodont to the selonadont type of 
the Ruminants. 
The second upper molar of this species figured {dg. 9) is from the Potwar 
district of the Panjab; like the preceding specimen, this also is from the right 
maxilla ; the form of the two teeth is similar, but the present specimen is rather the 
smaller of the two; its dimensions are as follows : — 
In. 
Length ... ... ... ... 0’81 
Width at anterior end ... ... ... 0’75 
Ditto posterior end ... ... ... 0*74- 
Genus Dinotherium, Kaiip. 
This genus was first introduced to the Indian Eossil Eauna by Ealconer from 
a specimen of a portion of a first lower molar and of a lower jaw discovered in 
Perim Island (“ JPalceontological Memoirs,^' vol. I, p. 396) ; the species was named 
by Ealconer Dinotherium indicum. Subsequently, the same naturalist identified 
two other molar teeth from near Attock (“ Pal. ml. 7, p. 414) as belonging 
to the same genus ; in the note on these specimens in the “ Paleontological 
Memoirs” no specific name was assigned to them, though they were considered to 
be of too small a size to have belonged to B. {perimense) indicum; these specimens 
are now in the Indian Museum ; they are ticketed with labels in Ealconer’s hand- 
writing bearing the name of 7). pentapotamice, which name I have accordingly 
adopted. Other specimens have been obtained by Mr. Eedden from Sind and Kach, 
and are figured in the present paper. All these specimens seem to belong to the 
same species, which was much smaller than D. indicum or any European form ; 
it is unfortunate that the Perim Island species is only known by the above- 
mentioned fragmentary tooth and lower jaw, in the latter of which the crowns of 
the molars have all been broken off, so that comparison between the teeth of that 
species and of 7). pentapotamice is impossible. In the collection sent to the Asiatic 
Society of Bengal by Captain Eulljames from Perim, there were certain molar 
teeth which were conjectured to belong to LopModon : Dr. Ealconer suggested these 
might also belong to Dinotherium Pal. Mem.” vol. I, p. 397). Unfortunately, I 
am quite unable to discover what has become of these fossils. 
Dinotherium pentapotami^, Pale , et nobis, PI. 9, figs. 1 to 5. 
The first of the Attock specimens { fig . 1) noticed by Dr. Ealconer is “ the 
penultimate or first premolar, upper jaw, right side ; at least this is inferred from 
its form and an obscure disc of pressure on the posterior side, and from there being 
( 72 ) 
