What is "polypide"

Polypide \Pol"y*pide\, n. (Zo["o]l.) One of the ordinary zooids of the Bryozoa. [Spellt also polypid.]

n. The internal contents of a bryozoan; includes the digestive and muscular systems.

The polypide in bryozoans encompasses most of the organs and tissues of each individual zooid. This includes the tentacles, tentacle sheath, U-shaped digestive tract, musculature and nerve cells. It is housed in the zooidal exoskeleton, which in cyclostomes is tubular and in cheilostomes is box-shaped.