Ultrastructure of the body cavities in Phylactolaemata (Bryozoa)

  title={Ultrastructure of the body cavities in Phylactolaemata (Bryozoa)},
  author={Alexander Gruhl and Ines Wegener and Thomas Bartolomaeus},
  journal={Journal of Morphology},
Only species belonging to the bryozoan subtaxon Phylactolaemata possess an epistome. To test whether there is a specific coelomic cavity inside the epistome, Fredericella sultana, Plumatella emarginata, and Lophopus crystallinus were studied on the ultrastructural level. In F. sultana and P. emarginata, the epistome contains a coelomic cavity. The cavity is confluent with the trunk coelom and lined by peritoneal and myoepithelial cells. The lophophore coelom extends into the tentacles and is… 

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