no. 1809. MAMMALS FROM BORNEO AND VICINITY— LYON. 



145 



tangible differences between the orangs of northern Sumatra 1 and 

 those from western Borneo. This difficulty is no doubt due in part 

 to the bulkiness of the specimens and the resulting inability to get 

 a view of both series as a whole, as can so readily be done with 

 small mammals in a tray. The Bornean orangs, however, appear 

 to be slightly larger externally and cranially; to be lacking nails on 

 the great toes almost entirely; to have a less conspicuous beard; 

 and to possess less hair about the head and neck generally. 



Illustrations of the head of a freshly killed male, and the entire 

 body, and of the head of a freshly killed female are shown on plates 

 5, 6, and 7. 



Measurements of orangs. 



Sex and age. 



Locality. 



Cata- 

 logue 



No. 



Male, adult 



Male, young, m 3 not 



visible. 



Male, adult 



Male, adult, rather old 

 Male, young, m 3 not 



through alveolus. 



Male, adult 



Male, adult, rather old 

 Male, adult 



Do 



Male, adult, rather old 



Male, adult 



Male, adult, rather 



young. 



Do 



Male, adult 



Do 



Male, adult, rather 



young. 



Female, adult 



Do 



Semandang River. 

 Sempang River 



....do 



Matan River. 

 do 



Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 

 Do. 



Do 



Female, adult, rather 

 old. 



Female, young, ml 

 not through alveo- 

 lus. 



Female, adult 



Female, young, m s 

 level with alveolus. 



Female, adult 



do 



Semandang River. 



do 



Sempang River... 



....do 



....do 



Kendawangan 

 River. 



....do 



....do 



....do 



Mambuluh River. 



Sempang River 



Semandang River. 



Matan River 



Sempang River 



....do 



Semandang River. . 



Sempang River 



....do 



Ratii Jurong 



Kendawangan 

 River. 



....do 



....do 



.do. 



.do. 

 .do. 



Mambuluh River. 



145301 

 145303 



145304 

 145305 

 145307 



145310 

 145313 

 145314 

 145316 

 145317 

 145318 

 153806 



153807 

 153816 

 153823 

 153S27 



145300 

 145302 

 145306 

 145308 

 145309 

 145315 

 145320 

 145321 

 153S05 

 153S09 



153818 

 153820 



153821 



153822 

 153821 



mm. 

 1,410 

 1,055 



( 6 ) 

 1,400 

 1,150 



m in . 

 957 

 680 



( 6 ) 

 968 

 735 



mm 

 355 

 267 



( 5 ) 

 335 

 290 



kilos 



200 



66 



180 

 175 

 75 



1,390 



'.'7(1 



3:15 



' 200 



1.100 

 1,200 



1,160 



785 



1,065 

 1,200 



in in 

 108 

 124 



180 



183 



111 



•Lyon Proc. IT. S. Nat. Mus., vol. 34, p. 676, September 14, 1908. 

 2 Collector's measurements. 



3 Collector's measurements in pounds and quarters computed to kilograms. 



4 m 3 not included. 



6 " Iu rigor mortis, impossible to measure." 

 6 " Teeth unusually small." 

 '"Fat." 

 8 "Gutted." 



80796°- Proc. N.M. vol.40— 11- 



-10 



