Some new facts about the hirudinea
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C. O. Whitman
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Article
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1889
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John Wiley and Sons
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English
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FEW facts and conclusions are here briefly stated in advance of several papers on the Hirudinea, which are now nearly completed, and which I hope to see published in the third volume of this JOURNAL. I. The Hirudinea, as a g ~0 2 9 , are characterized by the possession of segmental sense-organs on