Abstract

The oogenotop was studied using certain histochemical tests and the contributions of the various parts to the egg were noted. The Mehlis gland and the uterine epithelium make large contributions to the egg. Both the inner and outer envelopes are of reduced importance. A photographic record of oogenesis is presented showing it follows previous descriptions for the Cestoda. The first cleavage is unequal. Shell granules from the oocyte are carried to the macromeres where they are used in the formation of the outer capsule. Hatching is standard for eggs with a membraneous inner capsule. Most infections are characterized by one female and one male worm. Microsporidians reduce the number of sperm produced and probably limit the production of oncospheres.

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