298 EHINOCEEOTIDa;. 



of the history of the former knowledge of the animals ; and I have 

 only to observe that he did not discover that the skull figured by 

 Camper, which he copied (t. 2. f. 7) and regarded as the skuU of 

 the adult Rhinoceros bicornis, is the skull of the Rhinoceros heitloa. 

 He mentions R. simus as a distinct species, from M. de Blainville's 

 note on the animal (from Mr. BurcheU's MS.) in the ' Journal de 

 Physique.' 



The horns of these animals attracted the attention of Dr. Parsons, 

 who figured several of them in a paper in the ' Philosophical Trans- 

 actions ' for 1742 and 1743, among the rest the horns of some 

 African species, which have, since Cuvier's time, been determined, 

 chiefly by the form of the horn, to be distinct species. Some of 

 these horns are stiU in the British Museum. 



t. 3. f. 4, 5. Rhinoceros bicornis, in B. M. 

 t.- 3. f. 6. Rhinoceros simus, in B. M. 

 t. 3. f. 7. Rhinoceros Oswellii, in B. M. 

 t. 3. f. 8, 9. Rhinoceros heitloa ? 



In the British Museum and in the Museum of the College of 

 Surgeons there is a large series of the horns of both the Asiatic and 

 African species. 



I. The Asiatic Ehinocebotbs. Skin divided into shields, separated by 

 distinct folds. Nose-horn single, or with a small second hinder one ; 

 nasal bones produced, conical, acute ; intemasals cartiloffinous ; inter- 

 maxillary well developed, free; upper cutting-teeth two, compressed, 

 loell developed. Lower jaw attenuated in front, with a draight loicer 

 edge. Teeth 34:-J. ^i- C. %:%. P.M. f.f M. M— Gray, 

 P. Z. S. 1867, p. 1006. 



KMnoceros, § 2, Giehel, p. 205. 



Rhinoceros, Gray, lAst. of Mamm. B. M. 1840. 



Rhinocfiroa munis de dents incisives, Cuvier, Oss. Foss. ii. p. 89. 



The British Museum has a series of skulls of the four Asiatic 

 species, showing the form of the skull in the different ages of the 

 animal, from the just born to the adult or senile state. 



There is a considerable difference in the form of the skull between 

 the species which has one and that which has two horns, especially 

 in the form of the occipital end of the skull and in the size of the 

 occipital condyles. The difference is well represented in Bell's 

 figure of the skull of the Sumatran animal. 



I at first had a difficulty in distinguishing the difference between 

 the skuUs of the Javan and Sumatran species ; but this arose from 

 the British Museum having received from the Leyden Museum, 

 through Mr. Franks, a skeleton of the Javan species under the name 

 of R. swmatranus. But when I received a skull of the two-horned 

 species from Pegu, the mistake in the name of the skeleton was soon 

 discovered. 



Some of the specimens of skulls of R. unicornis and R. javanicus 

 in the British Museum have the foramen in the front of the orbit over 



