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Research topic:Nemertinea

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ribbon worm

ribbon worm see Nemertinea .

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"ribbon worm." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 11 Nov. 2009 <http://www.encyclopedia.com>.

"ribbon worm." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (November 11, 2009). http://www.encyclopedia.com/doc/1E1-X-ribbonwo.html

"ribbon worm." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved November 11, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-ribbonwo.html

	Nemertinea Book article from: The Columbia Encyclopedia, Sixth Edition Nemertinea , phylum of elongated, often flattened, marine Worms , sometimes called...grooves are believed to have a chemoreceptive or endocrine function. Nemertinea is the most primitive phylum that has developed a closed circulatory system...
	Nemertini Book article from: A Dictionary of Zoology Nemertini ( Rhyncocoela , Nemertea , Nemertinea , proboscis worms , ribbon worms ) A phylum of unsegmented, nonparasitic worms which are bilaterally symmetrical and elongate...
	ribbon worm Book article from: The Columbia Encyclopedia, Sixth Edition ribbon worm see Nemertinea .
	worm Book article from: The Columbia Encyclopedia, Sixth Edition ...well as the parasitic flukes (class Trematoda) and tapeworms (class Cestoda). The nemertines, or ribbon worms (phylum Nemertinea ), are often colorful marine carnivores with an extensible proboscis. The smallest species are only a fraction of an inch...