This bryozoan is a well known fouling organism on boats and in harbors. The zooids entrap organic particles with their extended lophophores; they brood ova in their translucent, globular ovicells.
Collected from Puget Sound sediments and photographed by the Washington State Department of Ecologys Marine Sediment Monitoring Team. For more information about this teams work visit: www.ecy.wa.gov/programs/eap/psamp/index.htm.