NOUN
- coelenterates in which the polyp stage is absent or at least inconspicuous: jellyfishes
How To Use Scyphozoa In A Sentence
- Byronia is most similar to thecae of polypoid coronalids, an extant group of scyphozoans that have been allied with conulariids.
- A life cycle including both polypoid and medusoid phases that can be separate in space and scarcely overlapping in time characterizes many hydrozoans and most scyphozoans.
- Free-living medusoid hydrozoans can be hard to tell from scyphozoans, but hydrozoan medusae generally have a muscular shelf, or velum, projecting inward from the margin of the bell.
- There are three subgroups within the cnidarians that have medusae, cubozoans, hydrozoans, and scyphozoans.
- Most hydrozoans alternate between a polyp and a medusa stage - they spend part of their lives as ‘jellyfish’ which are hard to distinguish from scyphozoan jellyfish.
- In turn, anthozoan species seem to have lost their group A HOX9-14 gene (present in hydrozoans; inconclusive data for scyphozoans; figure 1). PLoS ONE Alerts: New Articles
- Kuhn K, Streit B, Schierwater B (1999) Isolation of Hox genes from the scyphozoan Cassiopeia xamachana: implications for the early evolution of Hox genes. PLoS ONE Alerts: New Articles
- Moore and Harrington regarded Sphenothallus as a hydrozoan or scyphozoan.
- Free-living medusoid hydrozoans can be hard to tell from scyphozoans, but hydrozoan medusae generally have a muscular shelf, or velum, projecting inward from the margin of the bell.
- Although they share traits with the scyphozoans and hydrozoans, cubozoans also possess traits found in neither of the two other medusoid classes.
