OCR Text |
Show 4 3 6 THE HON. WALTER ROTHSCHILD ON [Dec. 13, 1763, and therefore, as the first acceptable generic name is Pongo, we find that the name for the Orangs as a group is Pongo pygmceus (Linn.). Now this animal of Linnaeus's is clearly shown by the description and Edwards's figure to have been a form without cheek-callosities, while we find in Schreber an ape, entitled Simia cigrias, which equally clearly is a young specimen of a form with cheek-callosities. But of neither of these forms or phases have we any data which can satisfactorily determine to what subspecies they belong; therefore the names of these two phases can only, I think, with any propriety, be applied to the Landak-Sarawak form, and we arrive at the following combination:- 7. f form, dimorph. pyqmceus (without callosities). ongo pygmceus, | fo rm _ dimorph. agrias (with callosities). Biit because this three-legged appellation applies only to one race of Orang-Outans, it is necessary to give names not only to each of the three other subspecies as a whole, but also to each dimorphic phase of each subspecies. Now Dr. Selenka called the phase with cheek-callosities from the Landak region Pithecus satyrus landakkensis, while he named the phase without cheek-callosities P. satyrus tuakensis; to these, however, I apply the names of Simia pygmceus of Linnaeus and S. agrias of Schreber, so we get as the first Bornean subspecies of Pongo pygmceus :- (form, dimorph. agrias (with cheek-callosities). (Text-fig. 116, p. 437.) form, dimorph. pygmceus (without cheek-callosities). (Text-fig. 117, p. 438.) The phase with cheek-callosities from the Batangtu region was named Pithecus satyrus batangtuensis by Dr. Selenka, while he named the phase without clieek-callosities P. satyrus skalauensis ; of these, one had, however, been described previously under the name of Simia wurmbii E. Geoft'. ; therefore the second Bornean subspecies must stand as follows :- p f form, dimorph. wurmbii (with cheek-callosities). ongo pygmceus I £orm <ijmoi.p]K skalauensis (without cheek- W\{f) * I[ ca-ll-ll osi*jt i• es)\. Dr. Selenka has called the phase with cheek-callosities from the Dadap-Genepai region Pithecus satyrus cladappensis, while he gave the name P. satyrus genepaiensis to the phase without cheek-callosities from the same region ; therefore the third Bornean subspecies must stand thus :- {form, dimorph. cladappensis (with cheek-callosities). form, dimorph. genepaiensis (without cheek-callosities). The Sumatran Orang with cheek-callosities had the name of |