⃛and molluscan embryogenesis

Olle Israelsson ()
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Olle Israelsson: University of Stockholm

Nature, 1997, vol. 390, issue 6655, 32-32

Abstract: Abstract Xenoturbella bocki Westblad1 is a strange animal — a 2-cm-long, slowly moving ciliated bag with no anus and no organs except for a position-sensing statocyst containing flagellated statoconia2. Despite the animal's peculiarities, it has been neglected by most textbooks. I now report a study of oogenesis in X. bocki which, together with the nucleotide data of Norén and Jondelius3, contradicts earlier hypotheses as to the phylogeny of the animal and instead suggests a molluscan relationship close to or within the protobranch bivalves.

Date: 1997
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DOI: 10.1038/36246

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