Scyphistomae


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Scyphistomae

 

individuals of the polypoid (asexually reproducing) generation of coelenterates of the class Scyphozoa, except the order Stauromedusae. Scyphistomae maintain a benthic sessile mode of life. The cone-shaped body, which measures 1–3 mm in height, is attached to a substrate by a short pedicel. On the opposite end of the body, the oral opening is surrounded by four to 32 tentacles. Scyphistomae of the order Coronatae are protected by a tough external cone-shaped tube and sometimes form small colonies. Reproducing by construction (strobilation), scyphistomae produce ephyra, larvae of the sexually reproducing generation of Scyphozoa.

References in periodicals archive ?
Zubkoff and Lin (1975) observed peculiar banding in the isozyme patterns of Aurelia scyphistomae from Puget Sound, Washington, that caused them to wonder whether this population may belong to a species other than A.
At Friday Harbor, Washington, and Santa Cruz Island, California, scyphistomae typically with 20 tentacles.
Although Colley and Trench (1983) found that all of the freshly isolated symbionts were phagocytosed by Cassiopeia xamachana scyphistomae, only Symbiodinium microadriaticum and S.
In Chesapeake Bay, medusae of the scyphozoan Chrysaora quinquecirrha are unusual in tolerating salinities as low as 5 [per thousands]; the scyphistomae (polyps) are not found where salinities are less than 7 [per thousands] and thrive at 10 [per thousands] to 25 [per thousands] (Cargo and Schultz, 1966, 1967).
1972) examined free amino acids (FAA) in scyphistomae of three species of scyphomedusae, including C.