192 PON GO 



is recognized, Pongo pygm^us Hoppius, erroneously attributed 

 to Linnaeus, and eight 'dimorphic' subspecies, according to the 

 presence or absence of cheek callosities as follows : 



Without cheek 

 Pongo pygmceus. With cheek callosities. callosities. 



Pongo pygmaeus pygrnceus .... agrias nomen nudum . . pygmceus. 



Pongo pygmaeus wurmbi wurmbi skalauensis. 



Pongo pygmaeus dadappensis . dadappensis gcnepaiensis. 



Pongo pygmaeus bicolor abelii bicolor. 



It will thus be seen that all of Selenka's races are received, but 

 with only one peculiarity, and that 'dimorphic,' (it cannot be con- 

 sidered a character), attributed to them. 



As it has not been proven that cheek callosities are 'dimorphic,' 

 or any evidence whatever produced to sustain his position, the Author 

 of the paper being the only one to express this view of the case, and 

 all the indications we possess, obtained from the study of skins and 

 skulls, seeming to show that these growths are not 'dimorphic' but 

 purely an individual peculiarity, as they attain any size only on some 

 old males, and are not in evidence in the young or half grown indi- 

 viduals, and no skull at any age indicates that these abnormities have 

 ever existed, therefore it cannot be said that, with only our present 

 knowledge to guide us, the Author's view of this question should be 

 accepted. 



Pongo *pygm-s;us (Hoppius). 



Bomean Ourang. 



Simia pygmceus Hoppius, Amcenit. Acad., 1763, p. 68. (Un- 

 doubtedly bestowed on an Ourang). 



Simia satyrus Linn., Syst. Nat., I, 1766, p. 34, (nee 1758, p. 25) ; 

 Bodd., Elench. Anim.. 1784. p. 55; Shaw, Gen. Zool., L 1800, 

 p. 3; E. Geoff., Cours Hist. Nat. Mamm., 1828, p. 22, 7me 

 Legon; Less., Spec. Mamm., 1840, p. 44; Blainv., Osteog., 

 1841. Atl., pi. I; Gray, Voy. Samarang, Vert., 1843-46, p. 1 ; 

 (nee Synon.), pi. I, Old Male; L Geoff., Cat. Primates, 1851, 



*If the Bomean and Sumatran Ourangs are specifically the same, as at 

 present seems the fact, then pygm.eus is the proper name for these .\pes ; but if 

 they are distinct the Bornean Ourang should be called "wurmbi," the Sumatran 

 "abelii." 



