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Capitata (Hydrozoa)
Capitata is a suborder of Hydrozoa, a class of marine invertebrates belonging to the phylum Cnidaria. Characteristics Members of this suborder are characterised by the tentacles of the polyps terminating in knobs. In some species these are only present in juvenile forms being replaced in adults by more threadlike tentacles. A high nematocyst concentration is present in the knobs. A few species in this group are better known as their solitary medusa form than as their polyp form. These include ''Sarsia'', '' Polyorchis'' and '' Cladonema''. Families According to the World Register of Marine Species, the following families are found in this suborder : *Asyncorynidae Kramp, 1949 *Cladocorynidae Allman, 1872 *Cladonematidae Gegenbaur, 1857 *Corynidae Johnston, 1836 *Halimedusidae Arai & Brinckmann-Voss, 1980 *Hydrocorynidae Rees, 1957 *Milleporidae Fleming, 1828 *Moerisiidae Poche, 1914 *Pennariidae McCrady, 1859 *Porpitidae Goldfuss, 1818 *Pseudosolanderiidae Bouillon & Gravier- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millepora Tenella
''Millepora tenera'' is a species of fire coral in the family Milleporidae. It is native to the Red Sea and the western Indo-Pacific region and is a zooxanthellate species with a calcareous skeleton. It was first described in 1949 by the Dutch zoologist Hilbrand Boschma. Distribution and habitat ''Millepora tenera'' is native to the western Indo-Pacific. Its range extends from the Red Sea and the eastern coast of Africa to Japan, Australia, American Samoa and the Mariana Islands. It is found at depths down to about , often in turbid locations where it is tolerant of some degree of siltation. Toxicity Like other fire corals, ''Millepora tenera'' can cause painful rashes when touched by bare skin. Extracts of this coral contain neurotoxins, and can cause convulsions, respiratory failure and death in mice. The extract causes hemolysis, contains a dermonecrotic factor and has antigenic properties. Rabbits immunised with the extract developed neutralising antibodies that were protec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asyncorynidae
Asyncorynidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known, heavily discussed, and spectacular group. It has also been called Gymnobl .... Genera: * '' Asyncoryne'' Warren, 1908 References Capitata Cnidarian families {{Anthoathecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sphaerocorynidae
Sphaerocorynidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known, heavily discussed, and spectacular group. It has also been called Gymnobl .... Genera: * '' Astrocoryne'' Maggioni et al., 2017 * '' Corynetes'' Haeckel, 1879 * '' Heterocoryne'' Wedler & Larson, 1986 * '' Sphaerocoryne'' Pictet, 1893 References Capitata Cnidarian families {{Anthoathecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solanderiidae
''Solanderia'' is the sole genus of hydrozoans in the monotypic family Solanderiidae. They are commonly known as tree hydroids or sea fan hydroids. Description ''Solanderia'' hydroids forms large colonies. They are one of about 1000 species of athecate hydroids, which do not construct a skeletal covering for their polyps (as opposed to the thecate hydroids in the order Leptothecata. The chitinous skeleton is internal, branches, and may form anastomoses. The skeleton is formed by coalescence and modification of adjacent hydrocauline tubes. The coenosarc covers the entire colony and penetrates skeletal interstices. The hydranths cover the whole colony surface and are uniform in structure, cylindrical, with a single whorl of capitate tentacles around the mouth. Numerous similar tentacles are scattered over the body. ''Solanderia'' is known from its polyp or hydroid stage, and produces gonophores which release sperm and eggs for reproduction. Where known, the gonophores are cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosalindidae
Rosalindidae is a family of cnidarians belonging to the order Anthoathecata. Description Rosalindidae are hydrozoans that are characterized by their ability to form colonies of polyps and attach to various surfaces, such as seaweed and shells, in the ocean. Rosalindidae are classified as invertebrates. They are considered epibionts, which rely on other invertebrates to live and develop. Although hydroids like Rosalindidae typically live on hard substrates and among coral rubble, as well as colonize scleractinia, researchers have found Rosalindidae growing on larger animal hosts such as ''Cladocarpus paradiseus'' hydroids. Rosalindidae form monomorphic colonies (monomorphism) in contrast to the polymorphic colonies (polymorphism) that characterize other hydrozoan families. Rosalindidae make up the order Anthoathecata - a hydroid group generally known for its fragility due to the lack of a perisarc to protect its gonophores and hydranths. However, colonies of polyps that fall un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudosolanderiidae
''Pseudosolanderia'' is a genus of cnidaria Cnidaria () is a phylum under kingdom Animalia containing over 11,000 species of aquatic animals found both in freshwater and marine environments, predominantly the latter. Their distinguishing feature is cnidocytes, specialized cells that th ...ns belonging to the monotypic family Pseudosolanderiidae. Species: *'' Pseudosolanderia picardi'' *'' Pseudosolanderia sagamina'' References Capitata Hydrozoan genera {{anthoathecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porpitidae
The chondrophores or porpitids are a small group of hydrozoans in the family Porpitidae. Though it derives from an outdated name for this lineage (see below), some still find the term "chondrophore" useful as a synonym to "porpitid" in discussions of the two genera contained therein. They all live at the surface of the open ocean, and are colonies of carnivorous, free-floating hydroids whose role in the plankton community is similar to that of pelagic jellyfish. The chondrophores look like a single organism but are actually colonial animals, made up of orderly cooperatives of polyps living under specialized sail-structures. The most familiar members of the family Porpitidae are the blue button (''Porpita porpita'') and the by-the-wind sailor (''Velella velella''). Description The tiny individual animals are specialized to perform specific tasks; some form the central gas-filled disc (which is a golden brown colour and hardened by chitinous material) essential to keeping the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennariidae
''Pennaria'' is a genus of hydrozoans. It is the only genus within the monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispe ... family Pennariidae. Species The following species are included in the genus: *'' Pennaria armata'' Vanhöffen, 1911 *'' Pennaria blistera'' Xu & Huang, 2006 *'' Pennaria disticha'' Goldfuss, 1820 *'' Pennaria grandis'' Kramp, 1928 *'' Pennaria wilsoni'' Bale, 1913 References Pennariidae Hydrozoan genera {{Anthoathecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moerisiidae
Moerisiidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known, heavily discussed, and spectacular group. It has also been called Gymnobl .... Genera: * '' Halmomises'' von Kennel, 1891 * '' Moerisia'' Boulenger, 1908 * '' Odessia'' Paspalew, 1937 References Capitata Cnidarian families {{Anthoathecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Milleporidae
Fire corals (''Millepora'') are a genus of colonial marine organisms that exhibit physical characteristics similar to that of coral. The name coral is somewhat misleading, as fire corals are not true corals but are instead more closely related to ''Hydra'' and other hydrozoans, making them hydrocorals. They make up the only genus in the monotypic family Milleporidae. Distinguishing characteristics Fire corals have a bright, yellow-green to brown skeletal covering, and are widely distributed in tropical and subtropical waters. They appear in small, brush-like growths on rocks and coral. Divers often mistake fire coral for seaweed, and accidental contact is common. Upon contact, an intense pain can be felt, lasting from two days to two weeks. Occasional relapses of post-treatment inflammation are common. Prominent side effects can include skin irritation, stinging or burning pain, erythema (skin redness), fever, and/or urticarian (hives) lesions. These side effects are due to ven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrocorynidae
Hydrocorynidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known, heavily discussed, and spectacular group. It has also been called Gymnobl .... Genera: * '' Hydrocoryne'' Stechow, 1908 * '' Samuraia'' Mangin, 1991 References Capitata Cnidarian families {{Anthoathecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halimedusidae
Halimedusidae is a family of cnidarians belonging to the order Anthoathecata Anthoathecata, or the athecate hydroids, are an order of hydrozoans belonging to the phylum Cnidaria. A profusion of alternate scientific names exists for this long-known, heavily discussed, and spectacular group. It has also been called Gymnobl .... Genera: * '' Halimedusa'' Bigelow, 1916 * '' Tiaricodon'' Browne, 1902 * '' Urashimea'' Kishinouye, 1910 References Capitata Cnidarian families {{Anthoathecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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