PAP 10 147 



Papio hamadryas arabicus Thomas. 



Papio arabicus Thos., Proc. Zool. Soc. Lond., 1899, p. 929 ; 1900, 



p. 96. 



ARABIAN HAMADRYAS BABOON. 



Type locality. Sixty miles north west of Aden, Arabia. Type in 

 British Museum. 



Geogr. Distr. Arabia. Range unknown. 



Genl. Char. Similar to P. hamadryas but smaller in size. Type 

 in British Museum. 



Color. The type is a young female, without any mane and gives 

 very little idea of the adult animal. The following description is there- 

 fore taken from an adult male captured at Lakej, near Aden, and now 

 in the British Museum Collection : Face bare. Top of head, starting 

 in a narrow line from the forehead and spreading out towards the 

 back of the head, blackish brown, hairs tipped with yellowish white, 

 rest of head and mane, which covers practically the whole of the upper 

 parts light grayish brown, the hairs being light brown ringed with gray- 

 ish white ; arms above elbows, legs and back, pale brownish gray, the 

 hairs ringed similarly to those of the mane ; forearms and hands iron 

 gray, nearly black ; feet pale brown and gray ; rump darker brown than 

 the mane; under parts pale gray, becoming pale brown at the loins. 

 Another specimen has the mane and upper parts a uniform reddish 

 brown, generally darker throughout than the one described. 



Measurements. Skull: total length, 153; occipito-nasal length, 

 131; Hensel, 140; zygomatic width, 98; intertemporal width, 48; 

 palatal length, 66 ; breadth of braincase, 72 ; median length of nasals, 

 50; length of upper molar series, 46; length of mandible, 112 ; length of 

 lower molar series, 56. Ex type in British Museum. 



In general appearance this baboon resembles the P. hamadryas 

 of the African continent, but is considerably smaller. 



Papio brockmani Elliot. 



Papio brockmani Elliot, Ann. Mag. Nat. Hist., IV, 1909, 8th Sen, 

 p. 248. 



Type locality. Derra Dawa, Somaliland. Altitude 3,500 feet. 

 Type in British Museum. 



Genl. Char. Color very different from P. hamadryas inclined to 

 reddish, no gray on mane. Skull compared with one of P. hamadryas 

 obtained by Riippell, has a shorter facial region ; rounded zygomatic 

 arches, not squared as in the other ; straight tooth rows, not curved, 

 and smaller teeth. Outer edge of lachrymal, from orbital ridge to root 



