308 G. V. HAMILTON 



with the females and the eunuchs, he and Mutt were usually- 

 seen perched upon a shelf together. Flea-hunting and affection- 

 ate embraces usually terminated in homosexual relations, Mutt 

 always assuming the female position. After they had been 

 together two weeks Jimmy II was removed from the band and 

 placed in a cage with 7-Becky-M-r for one week. During this 

 week of confinement with Becky, Jimmy II copulated with her 

 freely. At the end of the week he was allowed to rejoin the band. 

 As soon as he and Mutt caught sight of one another they rushed 

 into an embrace, smacking their lips and making crooning 

 sounds. Both animals quickly manifested marked sexual excit- 

 ment, and when Jimmy mounted Mutt the latter even rotated 

 his head to bring his lips in contact with those of his friend. I 

 have found that friendships between immature males and 

 mature males are of frequent occurrence, and that they seem to 

 have a sexual basis. 



Situation 9. Male, occupying cage with female, is supplied 

 with a nonprimate companion, the female not being removed. 



Observation 13. 6-Jocko-M-c and 3-Kate-M-r, both sexually 

 mature, occupied the same cage. A 4-foot gopher snake was 

 thrown into their cage. Kate took refuge on her shelf, but 

 Jocko cautiously approached the snake, lying stunned and almost 

 motionless upon the floor. Jocko finally mustered sufficient 

 courage to lift the snake's tail from the floor and inspect its anal 

 orifice. He then bestrode the snake, seized its body in his two 

 hands, and endeavored to copulate with it. When the snake 

 began to squirm the monkey shrieked and fled to the top of the 

 cage. But he made repeated attempts to approach the snake, 

 which drove him away each time by blowing and thrusting out 

 its tongue. 



Observation 14. Jocko, still occupying a cage with Kate, 

 was supplied with a kitten, a puppy and a fox in succession. He 

 attempted sexual relations with each of them after he had in- 

 spected their genitalia. 



Observation 15. A fox was given to a band of monkeys, includ- 

 ing females and sexually mature 16-Sobke-M-r and 14-Jimmy II- 

 M-c. Both males made frequent inspection of the fox's genitalia 

 (the fox was a male) and attempted to copulate with it. 10- 

 Timmy-M-c manifested similar behavior when the fox was given 

 to him, but he finally killed it. 



