THE TAMARINS. 139 
Distribution—The Silky Tamarin is found in the forests of 
South-eastern Brazil, in the coastal forests of New Granada, 
and as far north as the Isthmus of Panama. 
Habits—The “ Marakina,” as this exceedingly beautiful 
species is often called, lives in small troops, ascending to the 
slender branches at the tops of the highest trees in the forest. 
The species is very playful and intelligent. 
Closely related to the Silky Tamarin, if indeed it is really 
distinct from it, is the Maned Tamarin (JZ. deoninus, of 
Humboldt), which inhabits the same region, and is only seven 
inches in length, exclusive of the tail. ‘It is named /eonznus,” 
remarks Mr. Bates, ‘on account of the long brown mane 
which depends from the neck, and which gives it very much 
the appearance of a diminutive Lion.” In referring to their 
intelligence, the same writer continues, ‘‘ Isidore Geoffroy St. 
Hilaire relates of a species of this genus, that it distinguished 
between different objects depicted on an engraving. M. 
Audouin showed it the portraits of a cat and a wasp ; at these 
it became much terrified, whereas at the sight of a figure of 
a grasshopper or beetle it precipitated itself on the picture as 
if to seize the objects there represented.” 
Another species, the Golden-headed Tamarin (J/. chryso- 
melas, of Kuhl), which is in general colour black, with the head, 
fore-arms, hands, and a line beneath the tail, golden-yellow, is, 
according to Dr. Gray, ‘‘ very like a melanism of Leon/opithe- 
cus (=Midas) rosaha ; but the hands and feet, which are 
sometimes blackish in that species, are yellow—that is to say, 
not changed.” 
Il. GEOFFROY’S TAMARIN. MIDAS GEOFFROYI. 
Midas ewdipus, var. Spix, Sim. et Vespert. Bras., p. 30, pl. 23 
(1823). 
