434 



THE HON. WALTER ROTHSCHILD ON 



[Dec. 13, 



or according to iny view 7 distinct subspecies, each being dimoviohic. 

 His 3 additional subspecies are Bornean, and will be described m 

 his forthcoming paper. As I cannot find in previous writings on 

 the Orangs any descriptions which can be employed to_ denote 

 other forms than the 4 dimorphic subspecies recognised by 

 Dr. Selenka, I shall only deal with them, and leave Professor 

 Matschie to work out any forms, in addition to these 4, which may 

 exist in collections. 



Text-fig. 115. 



Head of Simla kouloohamha (Du Chaillu). (Veiy young animal.) 

 (From life.) 



Dr. Selenka, in the 8itzungsber. Akad. Wissensch. Berlin, 

 xvi. pp. 381-392, gives distinctive characters of his 8 races as 

 follows : — 



Borneo. 



A. (5 c? with Cheek-callosities. 



1. Pithecus satyrus landakkensis. — Hair deep reddish brown, 

 rarely brownish yellow. Skull mikrencephalic and micro- 

 gnathous ; cubic capacity, J 6 420-450 cb. cm., $ 5 350- 

 390 cb.cm, 4th molar rarely present. 



