THE TAMARINS. I45 



X. THE BLACK AND RED TAMARIN. MIDAS NIGRICOLLIS. 



Midas nigricollis, Spix, Sim. et Vespert. Bras., p. 2S, pi. 21 



(1823). 

 Midas rufoniger, I. Geoffr. et Deville, C. R., xxvii., p. 499 



(1848); Is. Geoffr., Cat. Me'th. Primates, p. 64(1851); 



Castelnau, Exped. Amer. Sud, pi. v., fig. 3 (1855;; Gray, 



Cat. Monkeys Brit. Mus., p. 67 (1870). 

 Hapale nigricollis^ Schl., Mus. Pays Bas, vii., p. 264 (1876). 



Characters. — Differs from M. fuscicoHis in having the back, 

 loins, thighs, and legs bright reddish-chestnut. {Gray.) Mouth 

 bordered with longish white hairs. 



Distribution. — The Upper Amazon Region. {Dates) The Black 

 and Red Tamarin is considered by Mr. Bates to be a form 

 or race of the same stock as M. 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 Midas iirsulus. " 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. 



Hapale il/igeri, Pucher., Rev. Zool., 1845, p. 2)?)^- 



3 — V. I , L 



