class Hydrozoa


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Related to class Hydrozoa: class Scyphozoa, class Anthozoa, Hydroid polyp
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class Hydrozoaclass Hydr...
  • noun

Synonyms for class Hydrozoa

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Specimens of Chrysaora quinquecirrha (Desor, 1848) (Class Scyphozoa), Physalia physalis (Linnaeus, 1758), Porpita porpita (Linnaeus, 1758) Cladonema (sp.) (Class Hydrozoa), Chiropsalmus (sp).
4 0.63 7 Penaeus setiferus 5 0.78 5 Crangon septemspinosa 3 0.47 5 Paleamonetes pugio 4 0.63 9 Cancer irroratus 1 0.16 1 Upogebia affinis 1 0.16 1 Class Bivalvia * * * Mytilus edulis * * * Crossostrea virginica Class Gastropoda All gastropods 1 0.16 1 Class Polychaeta All polychaetes 4 0.63 4 Class Hydrozoa All hydroids 2 0.31 2 Phylum Porifera All sponges 1 0.16 1 Miscellaneous items Chum (ground menhaden) 159 * * Bait (menhaden, spot, etc) 28 * * Plant material 11 * * Woody material 6 * * Plastic trash 1 * * Cigarette butts 2 * * Stones, gravel 2 * * Feathers 2 * * % by Weight % by Prey number in grams mass %IRI Class Osteichthyes Clupeidae Brevoortia tyrannus 18.11 14757.03 44.40 58.34 Alosa spp.
The "hydroid" family Bougainvilliidae Lutken, 1850 pertains to a group of historically and conveniently (i.e., not monophyletically) described of cnidarians in the orders Leptothecata and "Anthoathecata" (the latter, also not monophyletic, Cartwright et al., 2008) in the class Hydrozoa. As with other anthoathecates, the family Bougainvilliidae has two phases in its life cycle: fixed to a substrate as a polyp and as free swimming medusae (which may also have a reduced form that remains with the polyp, Russell, 1953).
Frequency Number (stomachs) %F (counts) Phylum Cnidaria Class Hydrozoa Family Sertulariidae Sertularia sp.
In a recent classification scheme (Naito et al., 1993) cnidarian homeoboxes are sorted into eight mutually paralogous classes (Table I), but 18 of 20 of the cnidarian genes are from members of the class Hydrozoa. Little is known of homeobox genes in other classes, including the corals and anemones of the class Anthozoa.