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Free Content Speciation and Time—Relationships of the Nemertines to the Acoelomate Metazoan Bilateria

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The discovery of a marine nemertine, lacking a proboscis apparatus, in kelp holdfasts in New Zealand induces a re-evaluation of the phylum Nemertinea and its relationship to the Bilateria, Morphological features, which can be interpreted as primitive, are analyzed and a time frame for changes in the basic morphology is suggested.

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Document Type: Research Article

Publication date: September 1, 1989

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  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
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