138 PAPIO 



and Fruit-eating Bats, Brit. Mus., 1870, p. 35 ; Schleg., Mus. 



Hist. Nat. Pays-Bas, Simise, 1876, p. 129, (in text). 

 Cercopithecus ochraceus Peters, Reis. Mossamb., Saugth., 1852, p. 



2, pi. I, juv. ; Sclat., Proc. Zool. Soc. Lond., 1893, p. 257, juv. 

 Cynomolgos cynocephalus Reichenb., Vollstand. Naturg. Affen, 



1862, p. 133, figs. 332-339. 

 Cynocephalus langheldi Matschie, Sitzungsber. Gesch. Nat. 



Freund., Berlin, 1892, p. 233; Forbes, Handb. Primates, I, 



1894, p. 275. 

 P-apio babuin Reichenb., Vollstand. Naturg. Affen, 1862, p. 147, 



figs. 380, 381 ; Forbes, Handb. Primates, I, 1894, p. 265. 

 Papio lydekkeri Rothsch., Novitat. Zool., IX, 1902, p. 140. (desc. 



nulla). Blue Nile. 



YELLOW BABOON. 



Type locality. "L'Afrique Mediterraneene." 



Geogr. Distr. Nubia, Central and East Africa in Sennaar, its 

 southern limit not yet known. 



Color. General hue varying from cream buff to buff yellow mixed 

 with black, the latter in some specimens including more than half the 

 apical portion of the hairs, and lying in streaks along the head and 

 back ; outer side of arms and legs cream buff grading to a darker hue ; 

 hands and feet ochraceous ; inner side of limbs and under parts 

 whitish or yellowish white ; tail very long, mixed ochraceous and black. 

 Callosities large, red, or purple red. Face flesh color. Hairs on nape 

 and over shoulders very long. 



Measurements. Size varying, some individuals as large as the 

 great brown baboons; tail, 730. Skull: occipito-nasal length, 173; 

 Hensel, 145.7; zygomatic width, 109.3; intertemporal width, 62; width 

 of braincase, 87.3; palatal length, 91.5; median length of nasals, 84.7; 

 length of upper molar series, 53; length of mandible, 115.5; length of 

 lower molar series, 69. 



This baboon varies greatly in size among individuals and some 

 old males are as large as any belonging to the dark colored group, such 

 as P. PORCARius, P. DOGUERA, ctc. The individual from which the 

 above description was taken. No. 8. 1. 1. 1. in the Collection of the 

 British Museum from Tambararo, in Portuguese Southeast Africa, 

 is a very large male, about the largest I have ever seen. The skin is 

 folded over on itself so as to make it impossible to give proper measure- 

 ments of the body, which indeed are never accurate when taken from 

 a dried skin, but the great length of the tail, 730 mm. which is in 



