PITHECIA 297 



Chiropotes satanas Reichenb., Vollstand. Naturg. Affen, 1862, p. 

 73, figs. 179-182; Gray, Cat. Monkeys, Lemurs and Fruit- 

 eating Bats, Brit. Mus., 1870, p. 61. 



Chiropotes ater Gray, Cat. Monkeys, Lemurs and Fruit-eating 

 Bats, Brit. Mus., 1870, p. 61, juv. 



BLACK SAK1. 



Type locality. Cameta, on the right bank of the Rio Tocantins 

 near its mouth, Brazil. 



Geogr. Distr. British Guiana ; forests near Para, Lower Amazon ; 

 banks of the Rio Orinoco, Rio Tocantins and Rio Negro, Brazil. 



Genl. Char. Size moderate; fur soft; hair on crown in young 

 radiating from center and falling evenly around the head; in adult 

 divided by a central line ; tail long, bushy ; whiskers long, and moderate 

 beard on chin. 



Color. General color of pelage black, with the back washed with 

 brown ; more so in the female than in the male ; hands and feet black. 

 Female does not differ in color from the male but has a shorter beard. 



Measurements. Total length, 863 ; tail, 406. Skull : occipito-nasal 

 length, 72; zygomatic width, 48; intertemporal width, 39; palatal 

 length, 26 ; breadth of braincase, 49 ; median length of nasals, 8 ; length 

 of upper molar series, 17; length of mandible, 42; length of lower 

 molar series, 20. 



I have examined the Chiropotes niger Gray, type in British 

 Museum, and find it to be undoubtedly this species. It is not 'shining 

 black,' but has quite a brown back, and is probably not a young 

 individual, the hair on head radiating from the center. 



PlTHECIA *CHIROPOTES (Humboldt). 



Simia (Pithecia) chiropotes Humb., Obs. Zool., I, 1811, (1815), 



p. 311. 

 Pithecia chiropotes E. Geoff., Ann. Mus. Hist. Nat. Paris, XIX, 



1812, p. 116; Kuhl, Beitr. Zool., 1820, p. 43; I. Geoff., Cat. 



Primates, 1851, p. 56; Dahlb., Stud. Zool. Fam. Reg. Anim. 



*Trouessart in his Catalogus Mammalium, p. 43, gives among the synonyms 

 of this species, P. chiropotes satanas var. fulvo-fusca Hoffmann., 1807, but no 

 page cited. After most diligent search I cannot find that Hoffmannsegg ever 

 gave the name fulvo-fusca to any species of monkey. It certainly is not 

 mentioned in the Mag. Ges. Nat. Freunde, Berl., X, 1807, where P. satanas is 

 described, nor in any other volume of the Magazine, and Dr. Trouessart must 

 have been misled in citing the name attributed to Hoffmannsegg. Had this 

 Author really called the species known as chiropotes, fulvo-fusca, the latter 

 appellation would have taken precedence. 



