Stauromedusae
Quick Summary
The Stauromedusae are an order of Scyphozoa, a class within the phylum Cnidaria. These are sessile jellyfish, meaning they attach themselves to marine plants and other objects using a stalk that ends in a sucker. Unlike most jellyfish, they are not free-swimming.
Stauromedusae are found in the colder seas of both the Northern and Southern Hemispheres. They typically have a vase, goblet, or trumpet shape and usually possess eight groups of tentacles. These jellyfish generally feed on small marine animals and can live for several years, with a direct development from larva to adult, bypassing a distinct polyp stage.123
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