Spermatophores of the snail Neritina rec
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E. A. Andrews
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Article
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1936
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John Wiley and Sons
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English
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## Abstract Differing from hitherto known spermatophores, these are found to have the form of a loop with a thick body and the slender ends twisted together. Also one end bears a spiral row of triradiate spicules, unique in being chitinoid secretions. Each is formed within a vacuole of a cell of a