Scyphozoa | Stauromedusae
Environment / Climate / Range
Benthic; depth range 1 - 8 m (Ref. 87801). Polar
Antarctic Atlantic, Southwest Atlantic and Southeast Pacific: Strait of Magellan.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 2.8 cm WD male/unsexed; (Ref. 2992)
Calyx conical; up to 2.8 cm wide; peduncle one half to one third as long as height of calyx; arms fairly short, flat equidistant, each with up to 100 or more tentacles; marginal anchors very large, biscuit-shaped, each with a tentacular knob; gonads wide, lancet shaped, widely separated, extending to end of arms with 100 to 150 follicles in 6 to 8 radiating rows.
Small individuals of this species are found attached to filamentous algae, while larger ones are attached to a variety of algae by means of its adhesive disc on the base of their peduncle. It detaches and reattaches by somersaulting using their adhesive organs. Found at depths of 1 to 8 m. Feeds on small crustaceans, fly larvae, polychaetes and gastropod molluscs. Preyed upon by fish and nudibranchs (Ref. 87801). 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.
Kramp, P.L. 1961. (Ref. 2992)
IUCN Red List Status (Ref. 115185)
CITES status (Ref. 108899)
Threat to humans
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Estimates of some properties based on models
Low vulnerability (10 of 100)