142 • FAUNA ANTIQUA SIVALENSIS. 



withotit any reference to tlie osseous structure generally of 

 the animal, in which oui- collections, however, abound, espe- 

 cially in vertebrse and the solid articulating extremities of 

 the bones. A more lengthened period of search and exami- 

 nation will add much to the value of an inquiry upon this 

 point, and a comparison with the actual bones of the Cape 

 Hippopotamus, instead of Cuvier's drawings, will render any 

 attempt at a discrimination of existing differences easier, and 

 when completed and worked out, doubly valuable. 



NoETHEEN DoAB : Nov. 15, 1835. 



APPENDIX TO MEMOIE ON HIPPOPOTAMUS. 



I. — Descriptions by Dr. Falconer of Specimens of Fossil Hippo- 

 potamus IN the Museum of the Asiatic Society of Bengal. 



A. Specimens of Hippopotamus {Hexaprotodon) Iravaticus, from 



JBurmak. 



No. 303. — LoAver end of left radius detached from tlie shaft and 

 nhiar extremity broken off; of small size, and corresponding very 

 closely with the specimen figured in the ' Fauna Antiqua Sivalensis,' 

 PI. LXV. fig. 18. This specimen is notable as being one of the very few 

 referable to Hippopotamus contained in the AA'a collection. 



Supposed to have come from Ava, from the ferruginous matrix, and 

 from differing from the Sewalik species. 



No. 307. — Lower end of left femur, showing the articulating con- 

 dyles and a part of the shaft — both much Aveathered and the surface 

 abraded, so as to render the character indistinct. The bone is pro- 

 portionally of much .smaller size than Hippopotamus Sivalensis, and 

 waiild thus agree with the dimensions of the radius No. 303, and with 

 specimens assigned to Hippopotamus Iravaticus in the ' Fauna Antiq. 

 Sival.' The shaft is slender. 



The specimen is believed to have come from Ava, being black from 

 iron infiltration, and very heavy. 



JB. Specimens of Hippopotamus {Hexaprotodon) Sivalensis. Mostly 



from the Sewalik Hills. 



No. 193. — A nearly entire cranium, in three pieces, showing the 

 occipiit and occipital crest, the sagittal do., and the whole of tlie chevron 

 i-egion on to the border of the incisives. Both zygomatic arches broken 

 off, and the rim of both orbits damaged. These parts show marks of 

 recent fracture, and were probably perfect when presented. The true 

 molars of both sides broken off. The foirr premolars on the left side 

 are present, and the three posterior premolars on the right side nearly 

 entire, and with the crowns much worn, showing the animal to have 

 been old. A section of the right canine is also seen in situ. This is, 

 on the whole, a very perfect specimen — nearly as much so as fig. 1, 

 PI. LIX. of ' Faun. Antiq. Siv.' This subdivision of the genus is dis- 

 tinguished by the length of the sagittal crest and the slight projection of 



