scyphistoma

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scy·phis·to·ma

 (sī-fĭs′tə-mə)
n. pl. scy·phis·to·mae (-mē) or scy·phis·to·mas
A larva of a scyphozoan, consisting of a very small sessile polyp that successively splits off free-swimming medusas.

[New Latin : Greek skuphos, cup + Greek stoma, mouth.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

scyphistoma

(saɪˈfɪstəmə)
n, pl -mae (-ˌmiː) or -mas
(Zoology) a sessile hydra-like individual representing the polyp stage of scyphozoans. It produces forms which become free-swimming jellyfish
[C19: from Greek skuphos cup + stoma]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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Ephyrae and medusae were grown in our laboratory (Providence College, Providence, RI) from cultured scyphistomae. These scyphistomae originated from planulae produced by medusae collected in the Niantic River, Connecticut, in a location similar to that of Brewer (1989) and Brewer and Feingold (1991).
9:15 EFFECTS OF DISSOLVED OXYGEN CONCENTRATION ON BUDDING OF AURELIA AURITA AND DRYMONEMA DALMATINUM SCYPHISTOMAE
Endocytosis of the symbiotic dinoflagellate Symbiodinium microadriaticum Freudenthal by endodermal cells of the scyphistomae of Cassiopeia xamachana and resistance of the algae to host digestion.
8:30 EFFECTS OF TEMPERATURE, SALINITY, AND FEEDING RATE ON BUDDING OF DRY-MONEMA DALMATINUM SCYPHISTOMAE
verrucosa consumes numerous athecate hydroid species, scyphistomae, and tunicates (Kuzirian, 1979).