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Recherches sur le developpement embryonaire de quelques Tenias

, : Recherches sur le developpement embryonaire de quelques Tenias. Arch: 183-210

Van Beneden (1) describes the development of Toenia serrata, T. saginata, and T. porosa ; the albuminigenous layer is regarded as being the final remnant of a primitive ciliated covering membrane ; and he raises the question whether the two layers of cells found in the hexacanth embryo are or are not homologous with the primitive layers of the Gastrula.

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