1867.] DR. J. E. GRAY ON THE RHINOCEROTID^. 101 1 



received from various persons without any special habitat that can 

 be relied on, which appear to belong to this species. They are 

 all without the process on the upper edge of the large thick inter- 

 maxillary bones. 



1. A fully adult skull (722 rf), marked " India?". 



2. An adult skull (722/) that was purchased of a dealer, without 

 any specified locality. 



In the Museum of the Royal College of Surgeons there is the 

 skeleton of an adult animal (no. 2969 a) that formerly had the long 

 front horns of an African Elephant placed on its nasal bones, which 

 Mr. Flower, the present Curator, has properly removed. 



There are also skulls of half-grown or female animals, with the 

 seventh grinder just showing itself, of this species (nos. 2975, 2976), 

 with a large oblong erect lachrymal. 



All these skulls have thick intermaxillaries, and the front of the 

 upper jaw, at the base of the intermaxillaries, is not suddenly con- 

 tracted. In the three adult skulls it is 3 inches 9 lines wide ; in the 

 younger skull in the College of Surgeons (no. 2975) it is 3 inches 

 3 lines. The width of the diastema between the cutting-teeth and 

 the front premolar is 2 inches 6 lines in all the specimens. 



There is a stuffed specimen and a mounted skeleton of a young 

 animal, just showing the horn, in the Free Museum at Liverpool, 

 and the skull of a second of the same age. These two animals died 

 on the voyage from Calcutta to Liverpool, were named E. sotidaicvs 

 by Mr. Blyth, and preserved by Mr. Moore, the energetic Curator 

 of that Museum. Mr. Blyth informs me there is a skeleton of R. 

 sondaicus in the Anatomical Museum of Guy's Hospital, called B. 

 indicus. 



The Indian Rhinoceroses are long-lived. Mr. Blyth speaks of a 

 pair that lived about forty-five years in captivity in Barrackpoore 

 park : they were exactly alike in size and general appearance ; they 

 never bred ; there is no difference in the horns or form of the skulls 

 in the two sexes (Blyth, J. A. S. B. xxxi. 155). 



The foetal skull of B. unicornis (no. 722 D) in the British Mu- 

 seum, received from Mr. Bryan Hodgson, is short ; the brain-case is 

 oblong, ovate, swollen, and convex behind ; the nasal bones are about 

 as long as they are broad at the hinder edge, transversely convex above 

 in the middle of their length and in the deep central groove in front 

 above ; the nasal cavity is long, high, and wide ; the nasal bones are 

 three-eighths of the entire length to the occipital crest ; the length 

 of the skull from the nasal to the front of the orbit is two-fifths of 

 the entire length to the occipital condyles. The intermaxillaries are 

 well developed, rather thick and short ; they each bear two blunt 

 teeth, scarcely raised above the alveolus, the first ou each side is 

 much larger and thicker than the hinder one, which is small and co- 

 nical. There are three grinders developed on each side, the second 

 and third being rather more developed than the small front one. 

 There appears to have been a fourth tooth ou each side more or less 

 developed ; but it and the cavity have been lost. The palate is nar- 

 row and deeply concave, nearly of equal width, but the sides are less 



