𝔖 Bobbio Scriptorium
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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 .