874 Remarks on the different species of Orang-utan. [No. 4. 



tached respectively to Bornean and Sumatran examples of the Mias 

 Parnbi. 



The Bornean species with donble-crested skull and huge cheek 

 callosities is the Mias Pappan of Sir J. Brooke, or rather of the 

 native Dyaks : and Sir J. Brooke remarks of it (not at that time 

 having seen a female), that — "Both Malays and Dyaks are positive 

 that the female of the Mias Pappan has cheek callosities, the same 

 as the male :" and from his own observation he adds that the Mias 

 Kassar has no cheek callosities in either sex ; whereas some young 

 Pappans he had shipped, " (one of them not a year old, with two 

 first molars,) shew them prominently."* For a figure of the adult 

 male of the Mias Pappan of Borneo, and series of plates illustra- 

 tive of its anatomy, vide the great Dutch work of Dr. S. Muller 

 and Professor Temminck; but unfortunately they give no repre- 

 sentation of the bony crests upon the skull. 



Of the long celebrated specimen of a large Orang-utan procured 

 by Capt. Cornfoot in Sumatra, and described by Dr. Clarke Abel 

 in the 'Asiatic Researches,' Vol. XV, p. 489, we still possess the 

 skin minus the right hand and right foot, and of its osteology only 

 the lower jaw and the bones contained in the dried left hand and 

 left foot. It is by no means a specimen of the largest size, as long 

 ago shewn by Dr. Harwood in Lin. Trans. XV, 472 ;t but the teeth 

 and appearance of the jaw prove it to be fully grown, and the third 

 inferior true molar is scarcely less abraded than the penultimate. 

 This lower jaw is remarkable (especially as being that of a mature 

 male animal) for the small antero-posterior diameter of its ramus 

 or ascending portion as distinguished from the alveolar portion, and 

 also for the small size of the condyle. Vide figures in As. Pes. XV, 

 pi. IV, and (^ size) in J. A. S. VI, pi. XVIII ; and compare these 



* Mr. Nicholls states, in a letter, that — " Both sexes of the Mias Pappan have 

 immense cheek callosities : a full grown female was lately killed at Samaratan, the 

 callosities of which extended as low down as the breasts [here the tracheal sac 

 must be referred to !] The Mias Rambi is without any callosities, and is, I think, 

 covered with longer fur than the M. Pappan has." 



t Dr. Harwood gives the length of the feet of a Bornean Orang described by 

 him as 15£ in. : the dried foot of Dr. Abel's specimen (containing the bones) 

 measures 13 in. 



