190 CERCOPITHECUS 



GENUS CERCOPITHECUS. BLACK TAMAMNS. 



!■ 3_2> *■" 1 — 1 j "• 3— 3» •'■"■• 2—2 3 2 - 



*0ERCOPITHECUS Gronov., Zoophyl. Gronov., 1763, p. 5. Type 

 Simia midas Linnaeus. 

 Cercopithecus Gronov., (nee Erxleb.), Elliot, Bull. Am. Mus. 

 Nat. Hist, N. Y., XXX, 1911, p. 341. 



Head not bald ; hair of mantle long ; face in adult hairy. 



KEY TO THE SPECIES. 



A. Hair on back of head long. 



a. Head not bald. 



b. Head, forepart of body and arms black. 



a.' Back rayed black and white. 



a." Hands and feet ochraceous buff; face 



of skull short C. midas. 



b." Hands and feet tawny ochraceous; 



face of skull long C. ruiimanus. 



b! Back rayed black and ochraceous C. ursulus. 



t Cercopithecus midas (Linnaeus). 



Simia midas Linn., Syst. Nat. I, 1758, p. 28 ; I, 1766, p. 42 ; 

 Schreb., Saugth., I, 1774-78, p. 132, pi. XXXVII; Bodd., 

 Elench. Anim., 1784, p. 63; Humb., Obs. Zool., I, 1811, 

 (1815), p. 362. 

 Little black Monkey of Edwards (Cercopithecus), Gronov., 

 Zoophyl. Gronov., 1763, I, p. 5. 



*Some Naturalists maintain that Gronow was not a binominalist, and that, 

 therefore, his genera must not be recognized. Against this view stands the 

 almost unanimous opinion of the Commission on Zoological Nomenclature 

 appointed by the International Zoological Congress held at Leyden in 1810. 

 The report which was adopted by a vote of eleven in favor to one against is 

 as follows: "It is clear that Gronow's nomenclature is binary, that is, he names 

 two units or things, genera and species. His generic names, therefore, cor- 

 respond to the provisions of the Code, and are to be accepted as available under 

 the Code." 



It is not to be doubted, therefore, that an Opinion passed with so much 

 unanimity will become a Law at the next meeting of the Congress, and 

 Gronow's name will be accepted by all Naturalists. 



fFor Geographical Distribution, see Seniocebus, p. 185. 



