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Report of the Scientific Results of the Voyage of H. M.S. Challenger, Vol. 6

  • Kartonierter Einband
  • 202 Seiten
Excerpt from Report of the Scientific Results of the Voyage of H. M.S. Challenger, Vol. 6: During the Years 1873-76; ZoologyThe o... Weiterlesen
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Excerpt from Report of the Scientific Results of the Voyage of H. M.S. Challenger, Vol. 6: During the Years 1873-76; Zoology

The oesophagus hanging down in the coelenteron is fastened to its place by the numerous septa (sarcosepta, Haeckel) which spring from the oral disk, wall, and pedal disk, and are attached superiorly to the oesophagus, whilst they end in a free margin below. They therefore divide the peripheral part of the coelenteron into simple radial chambers, which are closed where they surround the oesophagus and where they pass into the hollow spaces of the tentacles, but which Open downwards between the free margins of the septa into the central stomach, i.e., into that part of the coelenteron which lies under the oesophagus and is no longer divided into chambers by the septa.

All the above-mentioned walls and septa of the body of the Actinia are lamellae of no great thickness, and in many species the wall only is a tough sheath. The firmness of the lamellae depends upon their fundamental substance of connective tissue.

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Produktinformationen

Titel: Report of the Scientific Results of the Voyage of H. M.S. Challenger, Vol. 6
Untertitel: During the Years 1873-76; Zoology (Classic Reprint)
Autor:
EAN: 9781332188833
ISBN: 1332188834
Format: Kartonierter Einband
Anzahl Seiten: 202
Gewicht: 279g
Größe: H229mm x B152mm x T11mm
Jahr: 2015
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