embryophore

em·bry·o·phore

(em'brē-ō-fōr),
A membrane or wall around the hexacanth embryo of tapeworms, forming the inner portion of the eggshell. In the genus Taenia, the embryophore is exceptionally thick, with radial striations that form a highly protective structure; in the genus Diphyllobothrium, the embryophore is ciliated and enhances the aquatic life cycle of this and other pseudophyllid cestodes.
See also: coracidium.
[embryo- + G. phoros, bearing]

embryophore

the thick layer of the tapeworm egg, which surrounds the oncosphere.
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References in periodicals archive ?
are covered by a thick embryophore, which is composed of prismatic keratin blocks held together by a cement-like substance and thus are not easily destroyed.
Eggs are approximately 35 to 45 [micro]m in diameter, have a thick embryophore that has numerous tiny pores that look like radial striations, and three pairs of hooklets in the embryo (Figure 6-43).
Onchospher The stage that emerges from the egg shell and later from the embryophore of tapeworms.