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‘Lophenteropneust’ hypothesis refuted by collection and photos of new deep-sea hemichordates

Author

Listed:
  • Nicholas D. Holland

    (Scripps Institution of Oceanography (UCSD))

  • David A. Clague

    (Monterey Bay Aquarium Research Institute)

  • Dennis P. Gordon

    (National Institute of Water and Atmospheric Research)

  • Andrey Gebruk

    (Russian Academy of Sciences)

  • David L. Pawson

    (Smithsonian Institution)

  • Michael Vecchione

    (National Museum of Natural History)

Abstract

Collar coded: worms that weren't Enteropneusts, or acorn worms, are creatures of the deep whose relationship with vertebrates has caused considerable interest for over a century. More recently, marine biologists were intrigued by fuzzy pictures appearing to show enteropneusts with tentacles sprouting from the collar. This would have important implications for the body plan of these so-called lophenteropneusts: were they a missing link between enteropneusts and their cousins, the colonial tentacled pterobranchs? This ‘lophenteropneust hypothesis’ is now dismissed as a case of mistaken identity. A series of remarkable deep-sea photographs and videos shows ‘broad-collared’ enteropneusts gliding along the sea bed. One specimen has been sucked up with what they call in the trade a slurp gun: this newly named specimen has the broad-collared look, but it is not caused by tentacles.

Suggested Citation

  • Nicholas D. Holland & David A. Clague & Dennis P. Gordon & Andrey Gebruk & David L. Pawson & Michael Vecchione, 2005. "‘Lophenteropneust’ hypothesis refuted by collection and photos of new deep-sea hemichordates," Nature, Nature, vol. 434(7031), pages 374-376, March.
    • Handle: RePEc:nat:nature:v:434:y:2005:i:7031:d:10.1038_nature03382
    DOI: 10.1038/nature03382
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