1951 P. PEARSON Conyothinus rafinesquei March 20 Heard considerable squealing in the big cage in the basement after supper. One of the new furred males was pursuing a virgin ♀, who appeared only mildly cooperative (she later turned out to have no large or medium foldele). But in one of the other virgin females, who behaved more receptive. The ♂ approached her from the front (as he had approached the other), assumed a rather close ventre a ventre embrace, then nuzzled her thoroughly and repeatedly all over the ventral surface, face and forearms. No erection or intromission. She was hanging from the wire ceiling. She did not object by squealing as did the other ♀. Occasionally he seemed to be trying to work around onto her back. Several times she flew away from him. He would set out to find her, but apparently could neither see nor hear her (she made no audible sound). He would often approach a torpid male and start nuzzling it but would become discouraged after perhaps 15 seconds of this with no response. He even approached and nuzzled a freshly-dead male hanging from the side of the cage. Frequently he would encounter the less-receptive female and resume his courting of her. While pursuing a female he made a twittering sound. Apparently the closest to copulation was one occasion when, after much front-nuzzling he worked around onto the back of the female. She was hanging by all four from the ceiling and was walking slowly across the ceiling with him mounting her from behind. No intromission, however, or pelvic struts. This continued for perhaps 10 seconds and resulted