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Nautiloidea |
Also found in: Wikipedia, Hutchinson | 0.03 sec. |
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Nautiloidea [‚nȯd·əl′ȯid·ē·ə] (invertebrate zoology) A primitive order of tetrabranchiate cephalopods; shells are external and smooth, being straight or coiled and chambered with curved transverse septa. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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