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Sipuncula
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Introduction to the peanut worms, from UCMP Berkeley.
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Introduction to the Sipuncula, by UCMP Still others bore into rock. General Sipunculan Anatomy The body is completely unsegmented, and the intestine forms a twisted loop, with the anus on the side of the body. Typical of sipunculans is a forward (anterior) body section, the introvert,...Includes detailed classification of the 144 species in Phylum Sipuncula.
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Ed Cutler My primary research interests are in the systematics, zoogeography, and evolution of the Sipuncula a phylum of unsegmented marine worms. My early interest in the Pogonophora resulted in a few papers on this group. My collection of over 100 Pogonophora...