228 CALLITHRIX 



Callithrix JACCHUS (LiniiEeus). 



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. Mamm., 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; M 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. 



