Chap. V. BAREIGUDO MONKEYS. 319 



by being adapted to similar modes of life. The Loris 

 and their relatives of Tropical Asia have six incisor teeth 

 to the lower jaws, and belong, in all other essential 

 points of structure, to the Lemur family, which has not 

 a single representative in the New World. The Ei-as 

 have teeth of the same number, and growing in nearly 

 the same position, as their near relatives the Sai-mirfs. 

 I obtained, moreover, yet stronger proof of this close 

 relationship between the night and clay monkeys of 

 America, in finding a species on the Upper Amazons 

 which supplies a link between them. This one had 

 ears nearly as short as those of the night apes, and also 

 a striped forehead; the stripes being, however, two in 

 number, instead of three : the colours of the body were 

 very similar to those of the well-known Chrysothrix 

 sciureus, and the eyes were fitted for day vision. 



Barrlgudo Monkeys. — Ten other species of monkeys 

 were found, in addition to those already mentioned, in 

 the forests of the Upper Amazons. All were strictly 

 arboreal and diurnal in their habits, and lived in flocks, 

 travelling from tree to tree, the mothers with their 

 children on their backs ; leading, in fact, a life similar to 

 that of the Pararauate Indians, and, like them, occa- 

 sionally plundering the plantations which lie near their 

 line of march. Some of them were found also on the 

 Lower Amazons, and have been noticed in former chap- 

 ters of this narrative. Of the remainder, the most 

 remarkable is the Macaco barrigudo, or big-bellied 

 monkey of the Portuguese colonists, a species of Lago- 

 thrix. The genus is closely allied to the Coaitas, or 

 spider monkeys, having, like them, exceedingly strong 



