scyphistoma

…organisms, such as tapeworms and scyphostome polyps, is called strobilation. Commonly, this results in a chain, called a strobilus, of the fission products—the proglottids of tapeworms and the ephyrae of scyphozoan jellyfish; each proglottid or ephyra matures in turn and separates from the end of the strobilus. A few metazoan…

A sessile polyp (scyphistoma) stage asexually buds off young medusae from its upper end, with each such ephyra growing into an adult. The adults are either male or female, but in some species they change their sex as they age. In many species, normal fusion of egg and…

In most scyphozoans, a scyphistoma (scyphopolyp) produces immature medusae (ephyrae) by asexual fission at its oral end. This process, called strobilation, results in eight-armed, free-swimming ephyrae.