Hydrozoa |
Actinulida |
Halammohydridae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic. Subtropical
Western Atlantic and the Mediterranean: France, Germany, Italy, USA and Canada.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 0.1 cm BL male/unsexed; (Ref. 2992)
Body up to 0.08 cm long; about 20 tentacles and more than 10 statocysts; each tentacle of one of the two whorls with a large basal thickening.
Reproduction occurs only in hydroid stage (Ref. 1663, p. 26).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Reproduction occurs only in hydroid stage (Ref. 1663, p. 26).
Cairns, S.D., D.R. Calder, A. Brinckmann-Voss, C.B. Castro, D.G. Fautin, P.R. Pugh, C.E. Mills, W.C. Jaap, M.N. Arai, S.H.D. Haddock and D.M. Opresko. 2003. (Ref. 1663)
IUCN Red List Status (Ref. 123251)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
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Tools
More information
Age/SizeGrowthLength-weightLength-lengthMorphologyLarvaeAbundance
Internet sources
Estimates of some properties based on models
Vulnerability
Low vulnerability (10 of 100)
Price category