10 



MR. SCLATER ON RHINOCEROS UNICORNIS. [Jail. 3, 



moreover Mr. Blyth has informed us (see 'Field,' Aug. 20, 1870, 

 p. 1/3) that several years ago an accident similar to wliat has been 

 here recorded occurred to an animal of the same species in the 

 Zoological Gardens at Moscow, and that in this case likewise the 



Head of male Rhinoceros, with new horn growing (January 3rd, 1871). 



horn grew again. I have nevertheless thought that the present 

 occurrence is well worthy of a place among the records of the 

 Society. It is notorious that the reproduced horn of an animal is 

 liable to be materially different in structure from the normal horn ; 

 and it is very possibly due to some such accident as above mentioned, 

 that we have been favoured with the creation of certain new species 

 of Rhinoceroses that have been based upon horns alone*. 



" In further illustration of this subject, I beg leave to exhibit a 

 drawing of the present state of the horn of our old female Rhino- 

 ceros, which has now been in the Gardens since 1850 (see fig. 3). 

 Instead of rising nearly perpendicularly from the nose, as in the 

 ordinary form of this species, the horn in this animal projects for- 

 ward beyond the end of the nostrils, and has now attained a length 

 of 18 inches or thereabouts. This may perhaps be due to the 

 practice indulged in by this animal for several years of grinding 



* Rhinoceros crossii, Gray, P. Z. S. 18.")4, p. 250, based upon an anterior 

 horn of R. swmatranus {cf. Blyth, P. Z. S. 1852, p. 1). and /,'. oswelin, Gray, 

 P. Z. S. 1853, p. 40, which is probably the same as S. simus. 



