Bowerbankia sp.   

This bryozoan forms pale, translucent stolons that grow along the surface of the substrate.  The stolon gives rise to triangular or cone shaped zooids that grow upright, perpendicular to the surface.  The striated texture of the lophophore can be seen in some of the zooids.  However, detritus collects on the zooids of Bowerbankia species, making it difficult to see structures clearly. 

Anatomy of Bowerbankia

Zooid- one individual animal, part of a colony
Lophophore- a ring of ciliated tentacles surrounding the mouth used for feeding; may be extended or retracted
Stolon- growth along the substrate which anchors the organism to the substrate

Colonial Morphology of Bowerbankia