18/8.] PROF. FLOWER ON A TWO-HORNED RHINOCEROS. 



635 



indication of a second or frontal horn. I have compared it with the 

 eight skulls assigned to R. sumatrensis at present in London — four 

 in the British Museum, and four in the Museum of the College of 

 Surgeons. 



These skulls present considerable individual variation in general 

 conformation, proportioual breadth to length, in the development 

 and form of the nasal bones, number and position of the lachrymal 

 foramina, form of the posterior margin of the palate, and other 

 details. The present skull, however, is strikingly different from all 

 in its superior breadth compared with its length, and especially the 

 breadth and flatness of the frontal region. The annexed table of 

 dimensions exhibits the extent of this peculiarity ; and, to make it 

 more manifest, I have added the ratio of the breadth, taken between 

 the anterior margins of the orbits (where the difference is most cha- 

 racteristic), compared with the entire length of the skull, the latter 

 being taken as 100. On looking down this column of the Table, it 

 will be seen that, though there is a considerable variation among the 



* Nasals broken. 



4)* 



