RHINOCEROS LEPTORHINUS. 371 



the nasal bones are broad, long, straight, horizontal, not 

 massive, but strong and ' elances, 1 without a septum 

 below (' sans cloison en dessous '), abruptly bent down near 

 their free extremity, which terminates in a point directed 

 downwards and a little forwards," ib. p. 77. The marked 

 difference in the form of the cranium of the Rh. leptorhinus, 

 besides that essential structural one in the presence of the 

 osseous septum, will be appreciated by comparing the con- 

 tour of the nasal platform in fig. 131 with M. Christol's 

 figure and accurate description of the same part in the Rh. 

 Schleiermacheri. Cuvier deemed the skull of this species to 

 resemble that of the Sumatran two-horned Rhinoceros 

 more than any other, but to be proportionally shorter, with 

 the nasal platform broader and less pointed, its convexity 

 more prominent, and the temporal ridges more approxi- 

 mated, so as to form a sagittal crest. (Tom. cit. p. 502.) 

 Now, in each of these particulars, the Rh. Schleiermacheri 

 equally departs from the Rh. leptorhinus ; which, by its 

 proportionally longer cranium, with a narrower and more 

 gradually attenuated nasal platform (fig. 139, %), pre- 

 senting a more gradual and less elevated convex curve 

 (fig. 131), and with the flat space intervening between 

 the less approximated temporal Bridges, still more nearly 

 resembles the skull of the Rh. Sumatranus than does that 

 of the Rh. Schleiermacheri. The Rh. leptorhinus differs, 

 nevertheless, from the Rh. Sumatranus (see Cuv., op. cit., 

 torn, iii., pi. Ixxix., fig. 3) in its proportionally longer and 

 narrower cranium, in the more backward production of the 

 occipital ridge, and still more essentially by the ossified sep- 

 tum and its confluence with the fore-part of the nasal bones. 

 From the skull of the Rhinoceros incisivus, to which Cuvier 

 erroneously supposed that of Schleiermacher's species to 

 belong, our present specimen is readily distinguished by 



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