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Show 558 MR. R. I. TOCOCK ON THE BREEDING [May 15, 5. Notes upon Menstruation, Gestation, and Parturition of some Monkeys that have lived in the Society's Gardens. By R e g i n a l d I. P o c o c k , F.L.S., Superintendent of the Gardens. [Received May 15, 1906.] The matter contained in the following pages is an amplification of notes upon the reproductive phenomena of certain Cercopithecoid Monkeys and Baboons that recently lived, or are still living, in the Society's Gardens, and upon the offspring of some species of Macacos (Macaques) that bred in the Menagerie in the early months of the present year (1906). Through the kindness of Dr. E. Steegmann I am able to supplement and confirm my own observations on these questions by some new and interesting items of information concerning some of the Apes and Monkeys he has had of late years in his hands. Dr. Steegmann has most generously placed his notes at my disposal; and since they are extracted from a letter and form a connected whole, I have decided not to incorporate them with my own notes but to print them in full at the end of this paper. M en stru a tio n in M o n k e y s an d B aboons. Menstrual Inflammation. It is well known that the females of many Monkeys and Baboons when " on heat" exhibit extreme inflammation of the naked area surrounding the genital and anal orifices. The swelling, however, does not take place in all species of Cerco-pitliecidse. I have never detected it in any of the Guenons (Cercopithecus) nor in Macaques (Macacus) of the Common (fascicularis = cynomolgus), Bonnet (sinicus), Rhesus (rhesus), and Japanese (fuscatus) species. On the other hand, it is very conspicuous in Mangabeys (Cercocehus) of the Sooty (fuligi-nosus), White-crowned (lunulatus), and White-collared (cethiopicus) species; in all the Baboons (Papio) of which I have seen adult female examples, namely, the Chacma (porcarius), Guinea (sphinx), Green (olivaceus), Yellow (cynocephalus), and Hamadryas (hama-dryas), and in the Pig-tailed Macaque (Macacus nemestrinus). The present state of my knowledge on the subject may be summarised as follows:- a. A conspicuous subcaudal inflammatory swelling in the adult female when " on heat." Cercocehus fuliginosus, a'thiopicus, lunulatus. Macacus nemestrinus and M. sp. ? Papio porcarius, cynocephalus, sphinx, olivaceus, hamadryas. a . No such swelling in the female. Cercopithecus-all the common menagerie species. Macacus sinicus, fascicularis, rhesus, fuscatus. |