Sporosae

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“Gradual degeneration of the medusa bud into the form of a sporosae. The black represents the enteric cavity and its continuations; the lighter shading represents the genital products (ova or sperm). Sporosac, with imcomplete extension of the enteric cavity into the umbrella,-rudimentary invagination above to form the sub-umbrella cavity.” — Encyclopedia Britannica, 1893

Source

The Encyclopedia Britannica, New Warner Edition (New York, NY: The Werner Company, 1893)

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