1893.] MON^KETS or THE GEISTTS CEECOPITHECTTS. 249 



Grivet by the rust-red hairs on the space below the root of the 

 tail." (Martin, op. cit.) 



The Yervet is one of the commonest species of this genus 

 brought to Europe alive. 



14. Ceecopithecus ptgeetthbus. 



Vervet {Simla pijgerythra), F. Cuv. Mamm. i. pi. 23 (1821). 



Cercopithecus pygeryiJirus, Desm. Mamm. Suppl. p. 534 (1820) ; 

 Geoffr. Cat. Prim. p. 21 ; Wagn. Saug. v. p. 39 ; Peters, Eeise 

 n. Moss., Saug. p. 4 (Zambesia) ; Thomas, P. Z. S. 1885, p. 219 

 (Kilimanjaro). 



Cercopithecus rufo-viridis, Scl. List Vert. (lSS3)p. 8 ; id. P.Z. S. 

 1860, p. 420. 



Hah. East Africa, from Mozambique to Kilimanjaro. 



If I am correct in identifying this species with the true C. 

 pyyer7jthrus it is a very close ally of the Vervet (C lalandii), and 

 differs mainly in its yellowish-green colour above. I have until 

 recently called this species C. rufo-viridis, and am not now quite 

 clear that it is C. pygerythnis ; but I am inclined to think so from 

 what Wagner says {I. s. c). 



15. Cercopithecus eetthraechus. 



Cercopithecus erythrarchus, Peters, Eeise n. Moss., Saug. p. 1, 

 pi. 1 ; Schleg. Mus. P.-B. Sim. p. 77 ; Kirk, P. Z. S. 1804, p. 649 

 (Zambesi) ; Eeuvens, Zool. Gart. xxx. p. 207 (Zambesi) ; Oudemans, 

 Zool. Gart. xxxi. p. 267. 



Hah. Mozambique (Peters) ; Lower Zambesi (Kirk). 



Apparently quite distinct from the precediug species, being 

 without any white frontal band and having the lower rump 

 rufous. We have a young living specimen now " on deposit" in 

 the Monkey-house which, I suspect, belongs to this species. It 

 is said to have been obtained on the Congo. 



Sect. C. CercopitJied eryihronoti. 



Of this section, which is at once recognizable by members of it 

 being bright rufous above and white beneath, only two species are 

 known to me, which may be discriminated as follows : — 



A. Supra ruber flavido mixtus ; naso nigro 16. patas. 



B. Supra ruberrimus ; naso albo Vi. pyrrhorwtus. 



16. Cebcopithectts patas. 



Simia patas, Schreb. Saug. t. xvi. (1774). 



Cercopithecus patas, Erxl. Syst. E. An. p. 34 ; Schleg. Mus. 

 P.-B. vii. p. 84 (1876); Scl. List Vert. (1883) p. 8. 



Simia rubra, Gm. Syst. Xat. i. p. 34 (1788). 



Cercopithecus ruher, ' Geoffr. Ann. d. Mus. xix. p. 96 (1812) ; id. 

 Diet. univ. d'Hist. nat. iii. p. 307; Martin, M. An. p. 509; 

 Wagn. Saug. Suppl. v. p. 42 (1855); Scl. P. Z. S. 1874, p. 664; 

 id. List Vert. (1883) p. 8. 



