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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 7574

Anthony J.J. Rees, Deborah A. Donaldson, and Gordon F. Leedale; Morphology of the Scales of the Freshwater Heliozoan Raphidocystis tubifera (Heliozoa, Cetrohelidia) and Organisation of the Intact Scale Layer. Protistologica XVI(4):565-570, 1980

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Three types of isolated scales detected in freshwater plankton samples from Yorkshire, England, and British Columbia, Canada, are shown to belong to the heliozoan Raphidocystis tubifera Penard. New structural details of scales and whole cells have been revealed by scanning and transmission electron microscopy and these add to the original description based upon light microscopy. Previous records of this species are noted and its ecological and geographical ranges are briefly discussed.