Semaeostomeae

The Semaeostomeae (literally `flag mouths`) are an order of large jellyfish characterized by four long, frilly oral arms flanking their quadrate mouths. The umbrella is domed with scalloped margins, and the gastrovascular system consists of four unbranched pouches radiating outwards from the central stomach; no ring canal is present. They usuall.....
Found on http://en.wikipedia.org/wiki/Semaeostomeae

Semaeostomeae

(from the article `cnidarian`) ...scyphistoma stage with external chitinous skeleton. Oceanic, some species living at great depths.Order RhizostomaeMedusae like those of ... ...After the planula larva leaves its parent, it settles, passing briefly through a so-called hydratuba stage until it grows into a new scyphistoma. ... [2 relat...
Found on http://www.britannica.com/eb/a-z/s/62
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