ATELEU S 31 



two have been seen to join together by their hands and prehensile 

 tails to form a bridge for their young ones to pass over. The Indians 

 also say, that this animal generally moves suspended beneath the 

 boughs, not walking on them." 



Bartlett, (1. c.) says "the Black-faced Spider Monkey inhabits 

 the forests on the Ucayali, and the Huallaga rivers. It is found over 

 the whole of the valley of the Amazons, generally keeping to the 

 low districts. I shot an adult male at Chamicuros on the Huallaga 

 River, which had the thighs and belly very gray or grizzled. This is the 

 only species of Ateles ( !) obtained in large numbers by the Indians, 

 who frequently keep them as pets. These Monkeys travel in bodies of 

 perhaps thirty or forty together. This and the A. variegatus are, 

 so far as I know, the only Spider Monkeys which are found in the 

 district which I explored." 



Ateleus variegatus Wagner. 



La Chuva de Bracamorros Humb., Rec. Obs. Zool., I, 1811, 



(1815), p. 48. 

 Ateles (!) marginatus (nee E. Geoff.), Humb., Rec. Obs. Zool., 



I, 1811, (1815), pp. 340, 354. 

 Ateles ( !) variegatus Wagn., Schreb., Saugth. Suppl., I, 1840, p. 



313; V, 1855, p. 78; Id. Abhandl. Bayer. Akad. Miinch , V, 



1847, p. 240; Reichenb., Vollstand. Naturg. Affen, 1862, p. 



62, pi. X, fig. 154; von Frantz., Archiv. Natur., 1869, Pt. I, p. 



257; Sclat., Ann. Mag. Nat. Hist., VI, 4th Sen, 1870, p. 472; 



Id. Proc. Zool. Soc. Lond., 1870, p, 668; 1871, pp. 39, 217, 



225; Gray, Ann. Mag. Nat. Hist., VI, 4th Ser., 1870, p. 472; 



Bartl., Proc. Zool. Soc. Lond., 1871, p. 217; 1884, p. 884; A. 



Milne-Edw., Archiv. Mus. Hist. Nat, Paris, I, 1878, p. 162 ; 



von Pelz., Zool.-Bot. Ges. Wien, 1883, Beiheft, p. 9; Forbes, 



Handb. Primates, I, 1894, p. 231, pi. XXI. 

 Ateles ( !) geoffroyi Slack, Proc. Acad. Nat. Scien. Phil., 1862, p. 



511.C?, (necKuhl). 

 Ateles ( !) bartletti Gray, Proc. Zool. Soc. Lond., 1867, p. 992, pi. 



XLVII, c?; Id. Ann. Mag. Nat. Hist., VI, 4th Ser., 1870. p. 



428, juv. 

 Ateles ( !) chuva Schleg., Mus. Pays-Bas, Simise, 1876, p. 175 ; 



Anders., Cat. Mamm. Ind. Mus. Gale, 1883, p. 84. 



VARIEGATED SPIDER MONKEY. 



Type locality. None given. 



Geogr. Distr. Chyavetos, Nauta and Elvira, Peruvian Amazons ; 



