hydrozoan


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hydrozoan

any colonial or solitary COELENTERATE of the class Hydrozoa, including most of the species that exhibit an ALTERNATION OF GENERATION between HYDROID and medusoid (see MEDUSA forms.
References in periodicals archive ?
The common items were the tunicate Didemnum-Trididemnum, 7 species of algae, the bryozoan Crisia, and the hydrozoan Eudendrium, with more than 10% IRI at 1 or more sites and dates.
Kirklandia texana Caster --Cretaceous hydrozoan medusoid or trace fossil chimaera?
Juvenile scallops often move to gravelly sediments after the initial postlarval phase (spat) settle on various materials such as hydrozoans, amphipod tubes (Larsen & Lee 1978), shells of live P.
Several species of warm water hydrozoan cnidarians inhabit body folds of bivalve molluscs as inquiline symbiotes.
Jellyfish and their relatives the box jellies and hydrozoans are very simple animals.
Hydrozoans called Trachymedusae have diminutive bells and belong to the jet set.
In 2008, bryozoans and hydrozoans were found in very high densities in this area, compared with the Mid-Atlantic Bight where they were rarely observed (Stokesbury et al.
Their goal is not to catch fish but to haul in hard data documenting trawling's impact on tube worms, sponges, anemones, hydrozoans, urchins, and other denizens of the deep.
33 millisecond (ms), beating out other record movements such as the release of stingers by hydrozoans (jellyfish) at 0.