56 



SPECIMENS OP THE HIPPOPOTAMUS and other 



the pressure of the circumjacent sandstone has kept the splmters m their 

 places until they were cemented together, as at present. When adverting 

 to any of the accompanying sketches I shall notice those which have 

 suffered. 



I may here remark that the following brief notes and their accompany- 

 ing sketches, are forwarded with the view of filling up any hiatus which may 

 be found amongst the Hippopotamus remains, transmitted by Colonel 

 CoLviN, to the Asiatic Society ; and of bringing part of the Dddi'fpur collec- 

 tion to notice when his valuable despatch is examined and classified. 



Hippopotamus — Lower Jaws. 



Fig. 1. PI. IV, is the lower jaw of a full grown animal; the small ante- 

 rior molars are absent, the posterior molars much worn ; the junction of the 

 two halves of the jaw presents a curve of much regularity ; the narrowest 

 part of the j aw occurs at the third molar, or at the second if the advanced ones 

 be not counted ; the exterior curve of the maxillaries both anteriorly and to 

 the rear is bolder, giving a longer versed sine than observable in Cuvier's 

 plates of the existing and fossil species described by him : the base line of 

 the incisor teeth, or that at which they protrude from the jaw is in a line 

 with the centre of the canines, so that taking a side view their protrusion 

 from the j aw is not seen . 



Fig. 2, PL IV, is from a specimen in the possession of Conductor Dawe 

 which doubtless belonged to a younger and smaller animal than the former. 

 One of the 1st molars is present ; the 6th and 7th are little worn. The 

 incisors are nearly equal in diameter ; the right central one presents a worn 

 angular surface, produced it may be supposed by an upper incisor. 



The above specimens appear to be of one species. 



Figs. 3 and 5, PI. IV, are mere fragments, interesting however from the 

 shape and strise of the canines and the proportion of the diameters of the 

 incisors amongst themselves. The centre ones are the largest ; those next to 



