Scyphozoa | Semaeostomeae
Environment: milieu / climate zone / depth range / distribution range
Pelagic; depth range 0 - 20 m (Ref. 116114). Tropical
Western Atlantic and the Mediterranean: Puerto Rico, Brazil, Canada and USA.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 75.0 cm WD male/unsexed; (Ref. 3268)
50 to 100 cm wide; numerous 144 radial furrows on exumbrella, and between them same number of marginal lappets; the 16 stomach pouches terminate in 164 to 176 dichotomous ramuli; 8 times 2 rhopalar and 144 to 160 velar terminal canalc; mouth-arms about half as long as diameter of umbrella, the numerous tentacles arise from the middle zone of the subumbrella; eight sense-organs in deep niches.
Largest known medusa in tropical Atlantic (Ref. 3268). Neritic, potentially pathogenic (Ref. 116114). 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 (Ref. 833).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | 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.
Migotto, A.E., A.C. Marques, A.C. Morandini and F.L. da Silveira. 2002. (Ref. 813)
IUCN Red List Status (Ref. 123251)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 23.9 - 28, mean 27 (based on 294 cells).
Moderate to high vulnerability (50 of 100)