228 CALLITHRIX 



Callithrix jacchus (Linnaeus). 



Simia jacchus Linn., Syst. Nat., I, 1758, p. 27 ; I, 1766, p. 40 ; Erxl., 



Syst. Reg. Anim., 1777, p. 56 ; Bodd., Elench. Anim., 1784, p. 



68 ; Gmel., Syst. Nat., I, 1788, p. 39. 

 Callithrix jacchus Erxl., Syst. Reg. Anim., 1777, p. 56; Fisch., 



Syn. Mamra, 1829, p. 60 ; Elliot, Cat. Mamm. Field Columb. 



Mus., VIII, 1906, p. 553, Zool. Ser. ; Thos., Proc. Zool. Soc. 



Lond., 1911, p. 127. 

 Simia (Sagoinus) jacchus moschatus Kerr, Anim. Kingd., 1792, 



p. 80, No. 80. 

 Simia (Jacchus) jacchus Humb., Rec. Obs. Zool., I, (1811), 1815, 



p. 360. 

 Jacchus vulgaris E. Geoff., Ann. Mus. Hist. Nat. Paris, XIX, 1812, 



p. 119 ; Id. Cours Hist. Nat. Mamm., 1828, p. 35, lOme Legon ; 



Reichenb., Vollstand. Naturg. Affen, 1862, p. 2; Gray, Cat. 



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



63, var. 12. 

 Hapale jacchus Kuhl, Beitr. Zool., 1820, p. 46; Wagn., Schreb., 



Saugth. Suppl., I, 1840, p. 241; V, 1855, p. 124; Blainv., 



Osteog., 1841, Atl., Cebus, pi. VI; I. Geoff., Cat. Primates, 



1851, p. 39; Dahlb., Stud. Zool. Fam. Reg. Anim. Natur., 



fasc. I, 1856, pp. 185, 187; Bates, Nat. Amaz., 1863, I, p. 98; 



Schleg., Mus. Pays-Bas, Simiae, 1876, p. 271 ; Forbes, Handb. 



Primates, I, 1894, p. 132. 



COMMON MARMOSET. 



Type locality, "in America." 



Geogr. Distr. Island of Marajo, Brazil. 



Genl. Char. Face black with white spot ; ears naked with a tuft of 

 long hairs ; hairs outside of head long ; cross bands on back ; tail banded. 



Color. Head, nape, neck, and throat brownish black; ear tufts 

 and long hairs from behind ears white ; back yellowish gray ; lower 

 back barred with ochraceous, black and grayish white, caused by the 

 ochraceous hairs, the subterminal black bars and grayish white tips 

 alternating; hind limbs, hands and feet, black washed with yellowish 

 white ; under parts and inner side of limbs, black washed with gray ; 

 tail banded black and white. 



Measurements. Total length, 510; tail, 295; foot, 61; ear, 21. 

 (Collector). Skull: occipito-nasal length, 42; Hensel, 32; zygomatic 

 width, 30 ; intertemporal width, 22.5 ; palatal length, 14 ; breadth of 

 braincase, 25 ; median length of nasals, 8 ; length of upper molar series, 

 9 ; length of mandible, 29 ; length of lower molar series, 10. 



