Halecium Dataset The hydrozoan fauna (Cnidaria: Hydrozoa) from the peaks of the Ormonde and Gettysburg seamounts (Gorringe Bank, NE Atlantic) Rank GENUS Classification kingdom Animalia phylum Cnidaria class Hydrozoa order Leptothecata family Haleciidae genus Halecium Name Homonyms Halecium Halecium