Hydrozoa | Anthoathecata
Medel, M.D. and P.J. López-González. 1996. (Ref. 3327)
Size / Weight / Age
Max length : 15.0 cm H male/unsexed; (Ref. 3669)
Pelagic; depth range 0 - 30 m (Ref. 3086)
Climate / Range
Indo-Pacific, Northeast Atlantic and Mediterranean.
Complementary nematocysts atrichous isorhizas, cnidophores present in some hydranths; male and female blastostyles reduced; spadix of female blastostyle bifurcated when immature; mature eggs scattered over main axis of blastostyle (Ref. 3086).
Occurs from depths of 0 to 30 m, on rocks, concretions, barnacles, mussels, and algae (Ref. 3086). Members of the order Anthoathecata are mostly colonial A-form hydroids. Life cycle: The zygote develops into planula inside the gonophore and is later released as an actinula which metamorphoses into polyp stage (Ref. 833).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
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Estimation of some characteristics with mathematical models
Low vulnerability (10 of 100)