scyphozoa

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Related to scyphozoans: true jellyfish, anthozoans

scyphozoa

true jellyfish.
References in periodicals archive ?
Conversely, in both scyphozoans and cubozoans sexual reproduction occurs exclusively during the adult medusa stage.
Caption: Scyphozoan Cyanea capillata, lion's mane jellyfish
Differential ingestion and digestion of bivalve larvae by the scyphozoan Chrysaora quinquecirrha and the ctenophore Mnemiopsis leidyi.
In scyphozoans, two parallel subumbrellar systems were found based on immunohistochemical staining: one associated with the swim motor system (giant fiber nerve net, also called the motor nerve net: Passano, 1965; Anderson and Schwab, 1981; Satterlie and Eichinger, 2014), and one with a sensory/modulatory network called the diffuse nerve net (Passano, 1965; Anderson et ai, 1992; Gremmelikhuijzen et al.
This raises an interesting question concerning the righting responses of scyphozoans.
Surrounding the rhopalium, the epithelium of the rhopalial niche also contained a dense FMRFamide-IR network, much like that of the scyphozoans (Satterlie and Eichinger, 2014).
Morphology of the nematocysts of the medusae of two scyphozoans, Cato.
TPA was also effective in inducing metamorphosis in the larvae of two hydrozoans, Hydraetinia echinata (Muller, 1985; Schneider and Leitz, 1994) and Mitrocotnella polydiademata (Freeman and Ridgway, 1990); a few scyphozoans (Hofmann et al.
They captured the hydrozoans using dactyls at the tip of their pereiopods immediately after contact with the jellyfish, a predatory behavior very similar to that seen with the scyphozoans.
We then briefly consider the evidence for niche conservation in Drymonema and conclude, contrarily, that niche evolution characterizes the functional biology of Drymonema and perhaps also other scyphozoans.
The development of the Early Cambrian Olivooides indicated that it is a direct-developing cnidarian, perhaps related to scyphozoans (Bengtson and Zhao.
For example, because four intramesogleal muscles associated with peristomial pits are characteristic of most species of Stauromedusae as well as of the polyps of scyphozoans, it seems likely that these characters are symplesiomorphies that have been lost in both Cubozoa and Hydrozoa.