MAMMALIAN CESTODES. 553 



and is greatly swollen so as to be almost spherical in this region. 

 It is several times the diameter of the vagina. 



The uterus in the genus Bipyliduan is thus described by Ran- 

 som in his definition of the genus * : — " Uterus at first reticular, 

 later breaking up into egg capsules, each containing one or more 



Text-fig. 86. 



^ 



— t. 



JjipijUdiinn dongolense. 



A complete! 3' mature proglottid seen in sagittal section. 



m. Longitudinal muscles, o. Ripe embryos, each in a separate cavity. 

 t. Remains of testes. 



eggs." Nearly the same definition, but not quite so explicit, is 

 given by Fuhrmann t, who writes : — " Der Uterus lost sich in 



* "Cestodes of N. American Birds," Bull. U.S. Nat. Mus. no. 69, 1909. 

 t " Cestoden der Vogel," Zool. Jalirb. Suppl. vol. x. 1908. 



