144 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



vol. 40. 



Measuremen ts of gibbons . 



Name. 



Locality. 



Cata- 

 logue 

 No. 



Sex. 



Age. 



•3 8 

 <s o 



H. m. albrbarbis. 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



Do 



H. m. miilleri. 



Do 



Do 



Do 



Do 



Do 



Do.. 

 Do.. 

 Do.. 

 Do.. 



Do. 

 Do. 

 Do. 



Matan River 



do 



do 



Sukadana 



Batu Jurong 



....do 



do 



....do 



Kendawan g a n 



River. 



....do 



Klumpang Bay. 



do 



....do 



....do 



....do 



Pangkall a h a n 



River. 



....do 



....do 



Pasir River 



Balik Pap an 



Bay. 



do 



....do 



....do 



3145327 

 145329 

 145328 

 14532G 

 153796 

 153798 

 153797 

 153799 

 153800 



153801 

 151832 

 151834 

 151835 

 151833 

 151831) 

 151837 



151838 

 151839 

 154369 

 154370 



154371 

 154372 

 154373 



mm 



462 

 460 

 497 

 465 

 46S 

 470 

 465 

 4S0 

 475 



480 

 470 

 510 

 400 

 470 

 465 

 485 



470 

 388 

 435 

 440 



470 



450 

 460 



mm 



144 

 150 

 149 

 148 

 137 

 145 

 145 

 147 

 146 



148 

 138 

 158 

 138 

 144 

 135 

 143 



140 

 130 

 135 

 135 



140 

 143 

 135 



5.8 

 5.4 

 6.1 

 5.9 

 4.9 

 6.0 

 6.8 

 6.5 

 6.5 



6.2 



5.0 

 6.8 

 5.0 

 5.8 

 4.6 

 5.2 



5.9 

 3.3 

 4.2 

 5.2 



5.4 

 5.4 

 5.6 



Ml Ml. 



75.3 

 72.3 

 79.6 

 68.8 

 72.7 

 74.2 

 70.3 

 72.3 

 76.0 



75.3 

 70.9 

 80.7 

 72.3 

 72.8 

 72.0 

 75.0 



70.8 

 63.0 

 65.1 

 68.0 



74.5 



72.0 

 69.0 



mm. 

 71.5 

 64.0 

 68.2 

 66.3 

 65.5 

 66.2 

 69.2 

 60.9 

 74.0 



73.2 

 68.0 

 71.9 

 64.6 

 68.9 

 66.7 

 70.5 



66.9 

 68.7 

 63.7 

 70.4 



66.2 

 68.5 

 63.0 



mm. 

 32.3 

 32.6 

 «37.8 

 31.4 

 30.0 

 30.4 

 31.9 

 31.6 

 34.2 



31.3 



31.5 

 33.8 

 32.2 

 32.0 

 32.9 

 35.0 



31.2 

 29.0 

 28.2 

 29.4 



31.3 



33.2 

 32.6 



PONGO PYGMSEUS PYGNLEUS (Linnaeus). 



1763. Simla pygmseus Linnaeus, Amoenitates Academics, vol. 6, p. 68. 



1904. Pongo pygmseus pygmseus, Rothschild, Proc. Zool. Soc. London, 1904, 



vol. 2, p. 438. 

 1906. Pongo pygmseus pygmseus, Lyon, Proc. U. S. Nat. Mus., vol. 33, p. 571, 



December 24, 1907 (26 specimens from the Landak region). 



Orangs are represented by forty-eight specimens from southwest- 

 ern Borneo in Doctor Abbott's recent collections, sixteen as skins 

 and skulls and the remainder as skulls obtained from the natives. 

 (For a list of specimens with the exact localities see table, p. 145. 

 Immature or imperfect specimens among the skulls obtained from 

 natives are not included in the table) . No orangs were obtained in 

 southeastern Borneo, Doctor Abbott remarking, "There are no 

 orang-utans. They do not occur south of the Mahakam (also 

 Mehakam, Mehakkam, or Koetei, Kutei, Koti) River, 5 but are said 

 to be common to the northward of it." 



I have been unable to discover any differences between oranga 

 from the Landak River region and those from southwestern Borneo. 

 In fact, it is with great difficulty that I have been able to find any 



1 Collector's measurements. 



2 Collector's weight in pounds, computed to kilograms. 



3 Type. 



4 This specimen has a tooth posterior to m' on both right and left sides, and posterior to mi 3 on left side. 

 The supernumerary teeth are well developed and functional, each about half the size of the tooth in front. 



6 This river is not shown on the map, p. 57, but lies about as far north of Balik Papan Bay as the 

 Pasir River is south. 



