THE TITI MONKEYS. 165 



X. THE BLACK-HANDED TITI. CALLITHRIX MELANOCHIR. 



Callithrix melanochir, Neuwied, Beitr., ii., p. 114, et Abbild., 

 iv.; Gray, Cat. Monkeys Brit. Mus., p. 57 (1870); Schl., 

 Mus. Pays Bas, vii., p. 233 (1876). 



Characters. General colour red, but the crown of the head, 

 the throat, and inner side of the limbs, mixed black and grey ; 

 the hands and feet black. 



Distribution. This species has been recorded from Bahia, on 

 the east coast of Brazil. 



XI. THE GREY TITI. CALLITHRIX GIGOT. 



Callithrix gigot, Spix, Sim. et Vespert. Bras., p. 22, pi. 16 

 (1823) ; Schl., Mus. Pays Bas, vii., p. 234 (1876) ; Wei- 

 don, P. Z. S., 1884, p. 6. 



Callilhrix gigo, Gray, Cat. Monkeys Brit. Mus., p. 57 (1870). 



Characters. Hair about two inches long, soft and slightly 

 woolly over the trunk ; hair on the forehead shorter and more 

 thickly set ; that over the limbs short and loose. General 

 colour of the back reddish-grey behind, more ashy over the 

 forehead and limbs; the hair black at the base, cream-coloured 

 further up, the tips ringed with chestnut and black. Muzzle 

 and chin black, with a few short, strong, white hairs ; a black 

 line along the nose and round the eyes ; the eyelids white ; 

 the eye-lashes and long eye-brows black ; forehead thickly 

 covered with loose grey hairs, slightly tipped with black; a 

 faint ridge across the brow between the ears ; the ears black, 

 covered with soft black hairs, except for a small grey tuft 

 at their hind outer angle. In front of the ears a light grey 

 band over the cheeks, continued above on to the forehead, 

 below to the chest ; throat naked, light pink ; under surface 



