THE TAMARINS. 145 
X THE BLACK AND RED JAMARIN. MIDAS NIGRICOLLIS. 
Midas nigricollis, Spix, Sim. et Vespert. Bras., p. 28, pl. 21 
(1823): 
Midas rufontser, ¥. Geoffr. et Deville, C. R., xxvii., p. 499 
(1848) ; Is. Geoffr., Cat. Méth. Primates, p. 64 (1851) ; 
Castelnau, Expéd. Amér. Sud, pl. v., fig. 3 (1855); Gray, 
Cat. Monkeys Brit. Mus., p. 67 (1870). 
FHlapale nigricollis, Schl., Mus. Pays Bas, vii., p. 264 (1876). 
Characters.—Differs from JZ. fuscicollis in having the back, 
loins, thighs, and legs bright reddish-chestnut. (Gvay.) Mouth 
bordered with longish white hairs. 
Distribution.— The UpperAmazon Region. (Bazes.) The Black 
and Red Tamarin is considered by Mr. Bates to be a form 
or race of the same stock as JZ. ursulus, modified to suit the 
altered local conditions of its home, for in the Upper Amazon 
Region, as Mr. Wallace has pointed out, the seasons, as well as 
the nature of the country, differ very considerably. 
Habits.— Mr. Bates states that in its habits the present species 
is similar to AZidas ursulus. “One day,” he says, “ whilst 
walking along a forest pathway, I saw one of these lively little 
fellows miss his grasp as he was passing from one tree to 
another along with his troop. He fell head foremost from a 
height of at least fifty feet; but managed cleverly to alight 
on his legs on the pathway; quickly turning round, he gave 
me a good stare for a few minutes, and then bounded off gaily 
to climb another tree.” 
XI. ILLIGER’S TAMARIN. MIDAS ILLIGERI. 
Hlapale tlligert, Pucher., Rev. Zool., 1845, p. 336. 
5-2 L 
