Apostomatida (class Ciliatea, subclass Holotrichia) An order of ciliate protozoa in which mature forms have spirally arranged body cilia. The organisms live as parasites or commensals and often have two hosts, one of which is commonly a marine crustacean (e.g. Foettinga lives inside the gastrovascular cavity of sea anemones; motile young leave the sea anemone and encyst on the outside of small crustaceans; when the crustaceans are eaten by sea anemones the young emerge from their cysts).
More From encyclopedia.com
sea pen , sea pen See ANTHOZOA; and PENNATULACEA. Sea Urchin , sea ur·chin • n. a marine echinoderm that has a spherical or flattened shell covered in mobile spines, with a mouth on the underside and calcareous j… Sea breeze , sea breeze See LAND AND SEA BREEZES. sea breeze See land and sea breezes. Sea Of Azov , Sea of Azov Sea of Azov, Gr. Maiotis, Lat. Palus Maeotis, ancient Rus. Surozhskoye, northern arm of the Black Sea, c.14,000 sq mi (36,300 sq km), sha… Sea Slug , sea slug (nudibranch) Any of numerous species of marine gastropod molluscs, related to snails and found worldwide. They have no shells, quills or man… Sea Otter , The sea otter (Enhydra lutris ) is found in coastal marine waters of the northeastern Pacific Ocean, ranging from California to as far north as the A…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like