Phoronida is a small phylum consisting of about 12 species. These "horseshoe worms" are U-shaped and live in shallow marine sediments. They filter-feed by means of a ciliated organ called a lophophore, as do the Brachiopods and Bryozoans. 1. Introduction to the Phoronida - Introduction to the Phoronida, a small phylum related to brachiopods and bryozoans. 2. Phoronida - Geographical distribution, systematics (including relationship to other lophophorates), list of species, scientific papers, links. Site is in English, Spanish, and French.

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