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Free Content The Spawn of the Emperor Helmet Shell, Cassis Madagascariensis Lamarck, from South Florida

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Egg masses of Cassis madagascariensis are described and illustrated. Data is presented on capsular dimensions, enumerations of the embryos and capsules, and the developmental pattern. The known spawn of the Cassidae from Cassis, Cypraecassis, Galeodea, Morum, and Phalium are compared and grouped according to structure.

Document Type: Research Article

Publication date: December 1, 1969

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