Hydrozoa | Anthoathecata
Environment: milieu / climate zone / depth range / distribution range
Benthopelagic; brackish. Polar
Arctic, Atlantic Ocean and Northeast Pacific: Alaska, Canada and USA. Mostly polar, but also in subtropical and boreal.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 1.4 cm WD male/unsexed; (Ref. 2992)
Bell height measures 12 mm, with a rounded to pointed gelatinous apical projection; large manubrium attached to the radial canals from the top and with a large mouth and horseshoe-shaped folded gonads; 4 smooth-edged radial canals; 8-16 tentacles with laterally compressed bulbs and ocelli; transparent bell but may vary in coloration in the manubrium from reddish to yellowish to brownish (Ref. 2376).
Found in the marine environment and estuaries (Ref. 106119). Passively hanging upside down, suspended below the long tentacles (Ref. 2376). Species listed only in medusoid stage (Ref. 1663, p. 16).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Species listed only in medusoid stage (Ref. 1663, p. 16).
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. 119314)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
Low vulnerability (10 of 100)