294 MR. C. BODEN KLOSS ON 



characters. The skull was that of an aged individual ("crests greatly 

 develoi)ed, teeth much warn down") which might account for the 

 dimensions. 



The type of .1. hinturonij came from Malacca and females from 

 the neighbourhood have skull lengths of 145 and 14t5 mm, while L^'oii 

 records a male from East Sumatra with a skull length of 145 ram. 

 ( Proc. U. S. Nat Mus , xx.xiv, p. 651, 1908 ) and none of these appear 

 to be as old as the Sai Yoke specimen. 



Lyou lias also drawn attention to the variation in characters 

 and s'y/.e which are shown by skulls from one district, features which 

 are coniirmed by Malayan animals. The difference in length between 

 the skulls of A. (jairdneri and the specimens mentioned above (less tliau 

 one-third of an inch) cannot be considered of much importance iu such 

 an animal and, while none of the southern examples are old, ]\lr. 

 Gairdner seems to have been fortunate in securing an aged individual. 



The principal diff.:!rence between the Sai Yoke and Malayan 

 animals appears to be in breadth of skull and the latter may develop 

 this character in old age ; in Parado.i'iii'us the skulls of aged animals are 

 much broader than those which are merely fully adult and it may be 

 that the case is the same with Ardictia: other features, such as parallel- 

 sided nasals and vaulted skull occur in topotypes and the bullae are 

 also very variable. 



1 agree with Lyon that the gviy/And and grey phase is not 

 entirely characteristic of the young ; at the same time it is much more 

 frequent and profuse in them than in adults. Among a series of 

 Malayan sjx-cimens there are two from Se'angor of exactly the same 

 age; one of them is the most completely black of all and the other is 

 as grizzled as any of the juveniles, which are nuieh more grizzle<l than 

 the oldest animals : the hair-tips of the former are markedly ochraceous 

 and it seems doubtful whether Lyon was justifieil in describing 

 A. niasensn (op. cit.. Vol. 52, p. 44^5 ; 191G) from a Hat skin of which 

 the ai^'e is unknown : the measurements giveji indicate a small, and 

 probably young, animal. 



Owino to their habits, largely nocturnal and arboreal, the Jiear- 

 cat is not easily obtained and at present is represented in collections 

 by inadequate series. 



jufKN. NAT. mar. soc. sum. 



