RHINOCEROSES. 233 



ceros is becoming extremely rare in the Province of Sara- 

 wak; that in Central and North Borneo in the old jungle 

 it is more plentiful and that he had heard that two spe- 

 cies exist, but this, he thinks, is doubtful. 



Mr. Everett^) remarked in 1893: »the Javan Rhinoceros 

 {Rh. sondaicus) has been supposed to exist in Borneo , but 

 my inquiries on the subject have failed to elict any reliable 

 evidence that this is the case; but the discovery of some 

 subfossil molars in Sarawak , which have been indentified 

 as belonging to this species on good authority, renders it 

 probable that it may yet be discovered in the compara- 

 tively unexplored interior". 



If we examine carefully the above cited papers and ask 

 for facts ^ upon which have been based the statements that 

 Rhinoceros sondaicus should live in Sumatra and Borneo 

 and that Rh. sumatrensis lives in Java, we must confess 

 that there are no facts at all. 



The material in the Musea teaches that at present we 

 know with absolute certainty that the Rhinoceroses are 

 distributed over the East-Indian-islands as follows: Rh. 

 sondaicus over Java and Rh. sumatrensis over Sumatra 

 and Borneo. 



1) P. Z. S. L. p, 493. 



Notes from the Leyden Mliisetini , Vol. XVI. 



