Plumatella nitens, a new species of freshwater bryozoan from North America (Ectoprocta: Phylactolaemata), previously misidentified
✍ Scribed by Timothy S. Wood
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 664 KB
- Volume
- 328
- Category
- Article
- ISSN
- 1573-5141
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✦ Synopsis
Plumatella nitens is a newly recognized species of phylactolaemate bryozoan in North America . It has previously been combined with either P. repens or P. fungosa, from which it differs primarily by the floatoblast . In P. nitens the ventral floatoblast annulus is uniformly narrow with no significant widening at the poles . The dorsal floatoblast fenestra is conspicuously larger than in either P. repens or P fungosa . Reticulated ridges on the dorsal fenestra are weak along the margins, becoming unusually prominent in the center . The sessoblast is densely covered with uneven papillae . Spotty sampling so far shows a distribution only in the northern half of North America, including Massachusetts, Michigan, Minnesota, Wisconsin, Ontario, and the northern regions of Illinois, Indiana, and Ohio .