Haliclystus antarcticus Pfeffer, 1889
Stalked jellyfish
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Family:  Haliclystidae ()
Max. size:  2.8 cm WD (male/unsexed)
Environment:  benthic; marine; depth range 1 - 8 m
Distribution:  Antarctic Atlantic, Southwest Atlantic and Southeast Pacific: Strait of Magellan.
Diagnosis:  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.
Biology:  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 8m. Feeds on small crustaceans, fly larvae, polychaetes and gastropod mollusks. Preyed upon by fish and nudibranchs (Ref. 87801).
IUCN Red List Status: Not Evaluated (N.E.) Ref. 123251)
Threat to humans: 
Country info:   
 

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