class Hydrozoa


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Related to class Hydrozoa: class Scyphozoa, class Anthozoa, Hydroid polyp
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Noun1.class Hydrozoa - coelenterates typically having alternation of generationsclass 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
References in periodicals archive ?
Phylum Cnidaria Class Hydrozoa Order Anthoathecata Family Hydractiniidae Schuchertinia milleri (Torrey, 1902)--hedgehog hydroid (Fig.
Taxa Occurrence Remarks Class Hydrozoa Owen, 1843 "Superorder Anthoathecata" Cornelius, 1992 "Order Filifera" Kuhn, 1913 Family Bougainvilliidae Lutken, 1850 Bougainvillia muscus RG Immature colonies, (Allman, 1863) epizoic on H.
Only four species of Hydra (Class Hydrozoa, Subclass Anthomedusae, Family Hydridae) are known in Brazil: Hydra viridissima Pallas, 1766 (Cordero, 1939; Wolle, 1978), Hydra iheringi Cordero, 1939 (Cordero, 1939), Hydra intermedia Wolle, 1978 (Wolle, 1978) and Hydra salmacidis Silveira, Gomes and Silva, 1997 (Silveira et al., 1997).