MAMMAL I A

(Lat.), n. n. pi. Ma2m(ma3m)-ma(ma3)'li2 -a3. From mamma (q. v.). Fr., mammiferes. Ger., Sdugelhiere. A cla of vertebrates (being the highest group of all animals), mostly viviparous, consisting of those that suckle their young, [a, 48.] M. choriata. Syn.: M. placental i a. Those M. in which there is a direct connection between the mother and the foetus through the medium of the chorionic villi. [A, 8.] M. deciduata. Of Huxley, those M. in which the foetal and the maternal parts are blended in a placenta of definite formation, and in which a portion of the mucous membrane of the uterus is always cast off at the time of parturition. [A, 8.] M. implacental i a. See A CHORIA. M. non deciduata. A subdivision of the M. choriata in which the villi of the chorion penetrate into rece es in the uterine mucous membrane which do not develop until impregnation takes place, and are wholly extruded from these rece es at the time of parturition. [A, 8.] M. placental i a [Owen]. See M. choriata. [s. 703]