Hydrozoa

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Related to hydrozoans: anthozoans, scyphozoans
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Noun 1. [画像:Hydrozoa - coelenterates typically having alternation of generations]Hydrozoa - coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes
Cnidaria, Coelenterata, phylum Cnidaria, phylum Coelenterata - hydras; polyps; jellyfishes; sea anemones; corals
hydroid, hydrozoan - colonial coelenterates having the polyp phase dominant
genus Hydra - hydras
order Siphonophora, Siphonophora - marine colonial hydrozoans
genus Sertularia, Sertularia - sessile hydroid that forms feathery colonies
class - (biology) a taxonomic group containing one or more orders
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Inter- and intra-colonial genotypic diversity in hermatypic hydrozoans of the family Milleporidae.
The effects of exposure to wave action on the distribution and morphology of the epiphytic hydrozoans Clava multicornis and Dynamenapumila.
ventricosus found bryozoans, ascidians, and hydrozoans (Barrios & Reyes, 2009).
These little animals (which are actually hydrozoans called vellela vellela) are adapted to live at the air-water interface, where their sail lets them travel on the breeze.
The most abundant ingested items were a tunicates followed by red algae, hydrozoans, and bryozoans.
The Portuguese man o'war is actually a floating colony of closely related animals called hydrozoans.
Then there are two groups of close relatives--box jellies and hydrozoans (HIGH-druh-ZOH-unz).
The hydrozoans, a sister group of the box jellies, show more variation.
The Portuguese man-of-war is not in fact a jellyfish, but a floating colony of closelyrelated animals called hydrozoans, normally found at the surface of the open ocean.
Biofouling is made up of hundreds of species, such as tubicolous bacteria, protozoan, seaweed, mollusks, bryozoans, cirripeds, polychaetes, ascidians, hydrozoans, and so on.