The ouarine has the apertures of the nostrils placed on the sides, and not under the nose; the partition which divides the nostrils is very thick. He has neither pouches on the sides of his jaws, nor callosities on his posteriors, those parts being covered with hair like the rest of the body. His tail is long and prehensile. His hair is long and black, and in his throat is a thick concave bone. He is about the size of a greyhound. The long hair under his neck forms a kind of round beard, and he generally walks on all fours. The alouate has the same character as the ouarine, and seems to differ from him only in having a larger beard, and a reddish-coloured hair. I do not know whether the females of this species are subject to a periodical emanation; but from analogy, I should presume the contrary, for I have generally observed, that the apes, baboons, and monkeys, with naked posteriors, alone are subject to this emanation. THE COAITA, AND THE EXQUIMA. Next to the ouarine and the alouate, the coaita (_fig. 213._) is the largest of the sapajous. I saw one alive at the Duke of Bouillon's, where, by its familiarity and forward caresses, it deserved and obtained the affection of those who had it under their care; but notwithstanding all the good treatment and attention paid to it, it could not resist the cold of the winter 1764. It died regretted by its master, who was so kind as to send it to me to place it in the Royal Cabinet. I saw another at the Marquis de Montmirail's, the latter was a male, and the former a female, and both were equally tractable and well tamed. This sapajou, by its gentle and docile disposition, differs greatly from the ouarine and the alouate, which are extremely wild and untameable. It also differs from them in not having a bony pouch in the throat. Like the ouarine, its hair is black, but rough. The coaita also differs from them, in having but four fingers and no thumb to the fore paws: by this character and its prehensile tail it is easily distinguished from the monkeys, who have all five fingers and a flaccid tail.