LEONTOCEBUS 195 



d." Back black and tawny L. mystax. 



e." Back black and reddish brown L. weddeli. 



f." Back black and buff. 



a."' Mantle black L. devillii. 



b."' Mantle chestnut L. apiculatus. 



c!" Mantle dark liver brown L. illigeri. 



g." Back dark gray. 



a."' Mantle golden yellow L. tripartitus. 



b!" Mantle dark ferruginous L. lagonotus. 



c! Head buffy yellow L. fuscicollis. 



d.' Head black and gray speckled L. graellsi. 



e! Head on top black and hazel, sides black. .L. imperator. 

 B. Tail golden yellow, lips not white. 



a.' Head and arms golden yellow. 



a." Body golden yellow L. rosalia. 



b." Body ochre yellow annulated with black L. leoninus. 

 c." Body black L. chrysomelas. 



Subgenus Tamaxinus. 



Mane moderate ; lips white. 



Leontocebus labiatus *(E. Geoffroy). 



Midas labiatus E. Geoff., Ann. Mus. Hist. Nat. Paris, XIX, 1812, 



p. 121 ; Id. Cours Hist. Nat. Mamm., 1828, p. 36, lOme Legon; 



Tschud., Faun. Peruan., 1844, p. 53 ; I. Geoff., Cat. Primates, 



1851, p. 63 ; Dahlb., Stud. Zool. Fam. Reg. Anim. Natur., 



fasc. I, 1856, pp. 189, 194; Slack, Proc. Acad. Nat. Scien. 



Phil., 1861, p. 464; Forbes, Handb. Primates, I, 1894, p. 141. 

 Simia {Midas) labiatus Humb., Rec. Obs. Zool., I, 1811, (1815), 



p. 361. 

 Marikina labiatus Reichenb., Vollstand. Nat. Affen, 1862, p. 11, 



fig. 39. 

 Jacchus labiatus Desm., Mamm., 1820, p. 95. 

 Midas ruHventer Gray, Ann. Mag. Nat. Hist., XH, 1st Ser., 1843, 



p. 398; Id. Proc. Zool. Soc. Lond., 1865, p. 735; Id. Voy. 



Erebus and Terror, Zool., 1844, pi. XVIH ; Id. Voy. Sulphur, 



1844, pi. ; Id. Cat. Monkeys, Lemurs and Fruit-eating Bats, 



♦Geoffroy in his paper calls this an "Espece inedite," and does not quote 

 Humboldt's work, which he always does if Humboldt had previously provided 

 a name. 



