Bryozoans are a major component of rocky bottom subtidal marine communities. Pictured here is an orange and brown cyclostome bryozoan colony of Heteropora pacifica along with articulated, more delicate crisiid bryozoans, the pink branched hydrocoral Allopora californica, coralline and fleshy red algae, sponges, and compound ascidian tunicates. The phylogeny of the lophophorates (bryozoans, brachiopods, and phoronid worms) is discussed on page 1641. [Photo: James G. Morin at the ``Pinnacles'' off Seventeen Mile Drive, near Monterey, California, at a depth of 25 meters]

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