, Volume 518, Issue 1, pp 1–7

Plumatella geimermassardi, a newly recognized freshwater bryozoan from Britain, Ireland, and continental Europe (Bryozoa: Phylactolaemata)

  • Timothy S. Wood
  • Beth Okamura

DOI: 10.1023/B:HYDR.0000025051.65713.85

Cite this article as:
Wood, T.S. & Okamura, B. Hydrobiologia (2004) 518: 1. doi:10.1023/B:HYDR.0000025051.65713.85


Plumatella geimermassardi is a newly recognized species of phylactolaemate bryozoan. Its known range extends from Ireland east through southern Norway and south into Italy. Colonies grow close to the substrate with little free branching; the body wall is mostly transparent and without an obvious raphe. Floatoblasts are broadly oval and relatively small, with distinctively large dorsal fenestra and uniformly narrow ventral annulus. The sessoblast basal valve is low and dish-shaped; the annulus bears tubercles which vary in their prominence. This species brings to 14 the number of phylactolaemate bryozoans known in the region.

Bryozoa Phylactolaemata Plumatella geimermassardi taxonomy 

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Timothy S. Wood
    • 1
  • Beth Okamura
    • 2
  1. 1.Wright State UniversityDaytonU.S.A
  2. 2.School of Animal and Microbial SciencesUniversity of ReadingWhiteknightsU.K

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