Hydrozoa | Anthoathecata
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)
Size / Weight / Age
Max length : 1.4 cm WD male/unsexed; (Ref. 2992)
Climate / Range
Arctic, Western Atlantic and Northeast Pacific: Alaska, Canada and USA. Mostly polar, but also in subtropical and boreal.
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).
Passively hanging upside down, suspended below the long tentacles (Ref. 2376). Species listed only in medusoid stage (Ref. 1663, p. 16).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
| FisheriesWiki |
Estimation of some characteristics with mathematical models
Low vulnerability (10 of 100)