Microporella appendiculata
Morphology:
Microporella appendiculata is an encrusting bryozoan that forms light brown colonies. Autozooids are oval to hexagonal, flat of slightly convex. They are 0.5-0.65 by 0.35-0.45 mm, with five short thick oral spines.
Distribution:
The species is known from the western end of the English Channel and from the Adriatic