STRUCTURE OF SEWALIK HILLS. 39 



Reptilia. 



Crocodilia .... Gharial, crocodile ; both very closely corresponding 

 ■with the existing species now in the rivers. 

 Lacertine remains indeterminable. 



Chelonia .... Emys and Trionyx ; some of the fragments are of 

 the most gigantic proportions. Of the smaller 

 varieties, nearly entire specimens have been 

 foimd ; upper buckler and carapax complete. 

 'My cabinet also contains three heads, vranting 

 only the occipital portion of the cranium. 



Pisces. 

 Genera not established. 



Many other fragments have been found, but so imperfect 

 as to render a classification impossible. I may remark, that 

 there appears to be no end to the variety as well as quantity 

 of these remains ; and we may expect to do much, even in 

 this remote region, in advancing the inquiries respecting 

 fossil zoology. 



Of each genus above mentioned, with the exception of the 

 horse and the carnivora, I have already almost perfect skulls. 

 The bones of the body, however, appear to have been much 

 broken and mutilated ; but it is a singular fact, that from 

 many places where the fossils have been found as mere debris 

 of fallen clifiFs, fragments of bone have been obtained, which 

 have admitted of being joined, although the fractured ends 

 were coated with carbonate of lime, as if they had been fos- 

 silized separately. A beautiful example of this is exhibited 

 in an ahnost perfect rib of an elephant or mastodon, which is 

 forwarded to the Society's Museum, and which consisted of 

 no less than eight pieces. A perfect humerus of a ruminant 

 has been secured in this state ; and the bones of two hind 

 legs, namely, the upper part of the metatarsal connected to 

 the lower portion of the tibia by the hatermediate tarsal 

 bones, with, also, the os calcis entire, and all the smaller 

 bones of the tarsus equally so. These remains have be- 

 longed to an enormous animal, and, I believe, to the same 

 genus as that of a skull in my possession, and now under 

 description by my friend Dr. Hugh Falconer, of the Bengal 

 medical service, and myself. Although I refrain from zoolo- 

 gical details, I must mention that we have an animal evi- 

 dently formuig a connecting litik between the Pachydermata 

 and Ruminantia, or between the Tapir or Palwotherium, and 

 the latter order of mammalia. The hippopotamus of this 

 sandstone appears to be a new species, having six incisive 

 teeth, besides other peculiarities, particularly in the propor- 

 tion of the bones of the head: the tusks also differ from 



