244 CALLICEBUS 



stand. Naturg. Affen, 1862, p. 25, fig. 69 ; Schleg., Mus. Pays- 

 Bas, Simiae, 1876, p. 237. 

 Callithrix castaneo-ventris Gray, Ann. Mag. Nat. Hist., XVII, 

 1866, p. 58 ; Id. Cat. Monkeys, Lemurs and Fruit-eating Bats, 

 Brit. Mus., 1870, p. 56; von Pelz., Brazil. Saugth., 1883, p. 

 19 ; Forbes, Handb. Primates, I, 1894, p. 164. 



RED-BELLIED TITI MONKEY. 



Type locality. Banks of the River Madeira near Borba, Brazil. 



Geogr. Distr. Western Brazil. 



Genl. Char. Resembles C. cupreus, but the head is black on top, 

 and hands and feet are black instead of coppery red. 



Color. Top of head from forehead to between ears blackish 

 maroon ; face black ; the upper parts are reddish brown like C. cupreus 

 annulated with black darkest on dorsal line; limbs and under parts 

 coppery red ; hands and feet black with numerous yellow hairs mixed ; 

 tail black at base, grayish white for the rest of its length; a second 

 specimen has the tail black for basal third, then mixed gray and black, 

 and tip grayish white. Hairs on ears black. 



Measurements. Size about equal to C. cupreus. Skull : occipito- 

 nasal length, 67.3 ; Hensel, 44.2 ; zygomatic width, 48.9 ; palatal length, 

 28.5 ; median length of nasals, 17 ; length of upper molar series, 14.3 ; 

 length of mandible, 48.5 ; length of lower molar series, 26.6. Ex 

 specimen 8.5.9.9. British Museum. 



Caulicebus melanochir (Kuhl). 



Callithrix melanochir Kuhl, Beitr. Zool., 1820, p. 40; Desm.. 

 Mamm, 1820, p. 88; Wied, Beitr., II, 1820, p. 114; Id. Ab- 

 handl. Akad. Munch., IV, 1828, fig. 6; Wagn., Schreb.. 

 Saugth. Suppl., I, 1840, p. 230; V, 1855, p. 113; I. Geoff., 

 Cat. Primates, 1851, p. 40; Dahlb., Stud. Zool. Fam. Reg. 

 Anim. Nat., fasc. I, 1856, pp. 153-154; Reichenb., Vollstand. 

 Naturg. Affen, 1862, p. 22, fig. 57; Gray, Cat. Monkeys, 

 Lemurs and Fruit-eating Bats, Brit. Mus., 1870, p. 57; 

 Schleg., Mus. Pays-Bas, Simiae, 1876, p. 233 ; Forbes, Handb. 

 Primates, I, 1894, p. 165. 



BLACK-HANDED TITI MONKEY. 



Type locality. Bahia. 



Geogr. Distr. East coast of Brazil, from the Rio St. Mattheus to 

 Sertem de Bahia. 



Color. Male. Entire back from between shoulders to tail, and 

 flanks ferruginous ; head, neck, shoulders and outer side of limbs 



