Scyphozoa
E89894
Scyphozoa is a class of predominantly marine jellyfish known for their conspicuous medusa stage and gelatinous, bell-shaped bodies.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Rhizostomeae | 1 |
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
cnidarian taxon
ⓘ
taxonomic class ⓘ |
| bodyForm |
gelatinous bell-shaped body
ⓘ
medusa-dominated life cycle ⓘ |
| characteristicFeature |
cnidocytes with nematocysts
ⓘ
conspicuous medusa stage ⓘ oral arms surrounding mouth ⓘ radial symmetry ⓘ tentacles around bell margin ⓘ thick mesoglea ⓘ |
| circulatorySystem | no specialized circulatory system ⓘ |
| commonName |
scyphozoans
ⓘ
true jellyfish ⓘ |
| describedBy | Ernst Haeckel ⓘ |
| digestiveSystem | gastrovascular cavity ⓘ |
| ecologicalRole |
mesozooplankton predator
ⓘ
prey for sea turtles and fish ⓘ |
| economicImpact |
can cause jellyfish blooms affecting fisheries
ⓘ
can clog power plant cooling intakes ⓘ |
| exampleSpecies |
Aurelia aurita
ⓘ
Chrysaora quinquecirrha ⓘ Cyanea capillata ⓘ |
| excretorySystem | no specialized excretory organs ⓘ |
| feedingType |
carnivorous
ⓘ
planktivorous ⓘ |
| hasLifeStage |
ephyra
ⓘ
medusa ⓘ planula larva ⓘ scyphistoma polyp ⓘ strobila ⓘ |
| includesOrder |
Coronatae
ⓘ
Scyphozoa self-linksurface differs ⓘ
surface form:
Rhizostomeae
Semaeostomeae ⓘ Stauromedusae ⓘ |
| kingdom | Animalia ⓘ |
| locomotion | pulsatile jet propulsion ⓘ |
| nervousSystem | nerve net ⓘ |
| phylum | Cnidaria ⓘ |
| reproduction |
asexual reproduction by strobilation in polyp stage
ⓘ
sexual reproduction in medusa stage ⓘ |
| respiratorySystem | gas exchange by diffusion ⓘ |
| sensoryStructure |
ocelli
ⓘ
rhopalia ⓘ statocysts ⓘ |
| stingEffectOnHumans | often painful but usually non-lethal ⓘ |
| subphylum | Medusozoa ⓘ |
| taxonRank | class ⓘ |
| typeSpeciesGenus | Aurelia ⓘ |
| typicalHabitat |
marine environments
ⓘ
pelagic zone ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Rhizostomeae