A few days before we arrived at Sapê, one of the slaves caught a young male monkey of this species. A number of these little animals had come to pay a visit to a plantation of Indian corn, several of them were females that carried their young on their backs, which they seldom quit till they are able to provide for themselves; being pursued by some slaves, in the heat of the retreat, this one was thrown from its mother’s back, and made prisoner, and was presented to me by Senhor Lagoeira as a companion for Jerry. I little expected it would pay any attention to the young one, but no sooner were they put beside each other than the little one, fancying no doubt it had found its mother, crept up and secured itself on Jerry’s back, and apparently seemed quite happy. Jerry instead of being ill pleased with this intrusion, became so much attached to it, that she would not allow any one to touch the young one; and seemed to have all the affection for it as if it had been her own. Several times I observed that when it came off her back to amuse itself on the ground, and was about to get out of her reach, she would catch it by the tail and draw it back. During the first few days they were together, her breasts became inflamed by the attempt the young one made to obtain milk from them; it seldom left her back, remaining there both day and night. It was amusing to see her cleaning it of fleas by laying it down on the ground, turning over its long hair, layer by layer, and catching between her fore-finger and thumb the insects as they made their appearance and then eating them; when they were difficult to take in this manner, she would catch them between her teeth at once. During this operation the little one would lie as quiet as if it had been sleeping. It only lived a few weeks after we reached Arrayas, and I was surprised that although so much attachment was shown to it by the old one while it was alive, not the least symptom of grief was exhibited at its death.