. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. IN MONOTEEMES AKD MARSUPIALS 89 of nipples (thirteen or fifteen), we get a total which approximates to the number of mammary hairs and glands in the gland areas of the Monotremes. A further result of this subdivision is that the relatively few milk glands in connection with each nipple, if they are to produce the amount. Fig. 32.—Nipple Arrangement in " Phascologale ; (BRESSLAU.) of nourishment necessary for the young, must attain to a far higher degree of develo
. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. IN MONOTEEMES AKD MARSUPIALS 89 of nipples (thirteen or fifteen), we get a total which approximates to the number of mammary hairs and glands in the gland areas of the Monotremes. A further result of this subdivision is that the relatively few milk glands in connection with each nipple, if they are to produce the amount. Fig. 32.—Nipple Arrangement in " Phascologale ; (BRESSLAU.) of nourishment necessary for the young, must attain to a far higher degree of development than the mammary glands of the Monotremes. Thus we obtain a rational explanation of the remarkable diversity between the mammary glands of the Monotremes and the milk glands of the Marsupials. In my view these glands are neither so completely homologous, as. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bresslau, E. (Ernst), 1877-; Hill, James Peter, 1873-1954. London : Methuen & Co.
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Keywords: ., bookcentury1900, bookdecade1920, booksu, booksubjectmammaryglands
