160 ALLEN’S NATURALIST’S LIBRARY. 
When approaching to capture insects or small birds, which 
form its prey, it becomes keen and excited, but at other times 
it appears to be dull and listless. ‘They roam about in flocks 
of about half a dozen individuals, on the large branches of the 
great forest trees. They are noisy animals, and in the early 
morning they make the forest resound with their yelping cries. 
Il THE RED TITL CALLITHERI® ‘CUPEEA; 
Callithrix cuprea, Spix, Sim. et Vesper. Bras., p. 23, pl. 17, 
(1823); Gray, Cat. Monkeys Brit. Mus., p. 54 (1870) ; 
Schleg., Mus. Pays Bas, vii, p. 236 (1876); Thomas, 
PL... Tood, Pp» 364. 
Callithrix discolor, Is. Geoffr., C.R., xxvil., p. 498 (1848) ; id. 
Cat. Méth. Primates, p. 41 (1851); id. Arch. Mus., vj 
p- 551, pl. 28; Wagner in Schreb., Saugeth. Suppl., v., p. 
114 (1855). 
(Plate XIV.) 
Characters.—Fur soft and woolly, mixed with numerous long 
stiff hairs ; face black ; back grizzly blackish-grey in colour ; tail 
the same but darker ; the basal part and tips of the hairs grey, 
with an intermediate band below the tips, black; tip of the 
tail sometimes white; the cheeks, throat, hands, feet, legs, and 
the under side of the body, dark reddish bay; the ears coppery- 
red. 
Distribution. This species is found throughout the whole of 
the Peruvian Amazons, though not in very large numbers— 
indeed, it is said to be rare. It has been recorded from 
Cashiboya on the Ucayali, and Santa Cruz on the Huallaga. 
Mr. O. Thomas mentions his having examined twelve specimens 
from the Copataza river, and one from Andoas in Ecuador. 
