ALOUATTA 265 



b.' Black, base of hairs reddish brown, hands 



and feet pale reddish brown A. beelzehul. 



c' Black, back mixed black and golden, 

 flanks yellowish brown. 



a." Size large A. palliata. 



b." Size small A. p. mexicana. 



c." Size very small A. p. coibensis. 



B. General color chocolate brown A. crquatorialis. 



C. Coloring mostly shades of red. 



a. Upper parts of body uniform golden red, limbs 



darkened, young black A. ursina. 



b. Middle of back straw color, lighter than the 



rest of the upper parts, young like adults A. seniculus. 



c. Upper parts uniform golden yellow A. macconnelli. 



d. Upper parts uniform red, limbs bright red....^. insulanus. 



e. Upper parts golden red, limbs maroon A. juara. 



f. Upper parts uniform pale golden orange A. sara. 



Alouatta CAKAYA (Humboldt) . 



Simla {Stentor) caraya Humb., Rec. Obs. Zool., I, 1811 (1815), 



p. 355. 

 *Stentor niger E. Geoflf., Ann. Mus. Hist. Nat. Paris, XIX, 1812, 



p. 108. 

 *Stentor stramineus E. Geoff., Ann. Mus. Hist. Nat. Paris, XIX, 



1812, p. 108,$, (nee Spix). 

 Mycetes niger Kuhl, Beitr. Zool., 1820, p. 31 ; I. Geoff., Cat. 



Primates, 1851, p. 53; Dahlb., Stud. Zool. Fam. Reg. Anim. 



Nat., fasc. I, 1856, p. 175 ; Schleg., Mus. Pays-Bas, Simiae, 



1876, p. 149; von Iher., Proc. Zool. Soc. Lond., 1899, p. 517. 

 Cebus caraya Fisch., Syn. Mamm., 1820, p. 44. 

 Mycetes barbatus Spix, Simiar. et Vespert. Bras., 1823, p. 46, pi. 



XXXII c?, XXXIII $ ; Gray, Ann. Mag. Nat. Hist., 1845, p. 



220; Casteln., Exped. Amer. Sud, 1855, p. 4; Reichenb., Voll- 



stand. Naturg. Aflfen, 1862, p. 68, figs. 166-168; Gray, Cat. 



Monkeys, Lemurs and Fruit-eating Bats, Brit. Mus., 1870, 



p. 41. 



*These species are not marked "Espece inedite," which Geoffroy usually 

 stated beneath his description when he believed the animal had not previously 

 been described. 



