帚虫动物门是动物界的一个小门，仅有2个属，10几个种，全部是海洋底栖动物。

http://www.itis.usda.gov
TSN (phylum): 155456
TSN (family): 155457

Phoronids (scientific name Phoronida, sometimes called horseshoe worms) are a phylum of marine animals that filter-feed with a lophophore (a "crown" of tentacles), and build upright tubes of chitin to support and protect their soft bodies. They live in most of the oceans and seas including the Arctic Ocean but excluding the Antarctic Ocean, and between the intertidal zone and about 400 meters down. Most adult phoronids are 2 cm long and about 1.5 mm wide, although the largest are 50 cm long.