Scyphozoa |
Semaeostomeae |
Ulmaridae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
Pelagiska. Tropical
Eastern Central Pacific: USA.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm
A semaeostome scyphomedusae with a hemispherical to round bell, up to 9.4 cm in diameter. Exumbrellar surface of the bell is heavily laden with small bumps which are composed of dense aggregations of nematocysts. 3 or 4 gonads and 3 or 4 oral arms with larger nematocyst laden bumps. All surfaces are a translucent blue-white color. Tentacles are completely lacking. Canal are simple, not netlike. Marginal ring projections often bifurcated on each side of a rhopalia.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Members of the class Scyphozoa are gonochoric. Life cycle: Egg is laid by the adult medusa which later develops into a free-living planula, then to a scyphistoma to a strobila, and lastly to a free-living young medusa.
Raskoff, K.A. and G.I. Matsumoto 2004 Stellamedusa ventana, a new mesopelagic scyphomedusa from the eastern Pacific representing a new subfamily, the Stellamedusinae. J. Mar. Biol. Ass. U.K. 84:37-42. (Ref. 3639)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundans PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Price category
Unknown.
