|
Lafoeidae
Lafoeidae is a family of hydrozoans Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specializ .... Genera The following genera are recognized within the family Lafoeidae: * '' Acryptolaria'' Norman, 1875 * '' Billardia'' Totton, 1930 * '' Cryptolarella'' Stechow, 1913 * '' Filellum'' Hincks, 1868 * '' Grammaria'' Stimpson, 1853 * '' Lafoea'' Lamouroux, 1821 References Leptothecata Cnidarian families {{Leptothecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acryptolaria
''Acryptolaria'' is a genus of hydrozoans in the family Lafoeidae Lafoeidae is a family of hydrozoans Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be .... Species The following species are recognized in the genus ''Acryptolaria'': * '' Acryptolaria abies'' (Allman, 1877) * '' Acryptolaria andersoni'' Totton, 1930 * '' Acryptolaria angulata'' (Bale, 1914) * '' Acryptolaria arboriformis'' (Ritchie, 1911) * '' Acryptolaria bathyalis'' Peña Cantero & Vervoort, 2010 * '' Acryptolaria bulbosa'' (Stechow, 1932) * '' Acryptolaria conferta'' (Allman, 1877) * '' Acryptolaria corniformis'' Naumov & Stepanjants, 1962 * '' Acryptolaria crassicaulis'' (Allman, 1888) * '' Acryptolaria disordinata'' Peña Cantero & Vervoort, 2010 * '' Acryptolaria elegans'' (Allman, 1877) * '' Acryptolaria encarnae'' Peña Cantero & Vervoort, 2010 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Billardia
''Billardia'' is a genus of cnidarians belonging to the family Lafoeidae. The species of this genus are found in primarily in Antarctica Antarctica () is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean, it contains the geographic South Pole. Antarctica is the fifth-largest co ... and Australia. Species: *'' Billardia hyalina'' *'' Billardia intermedia'' *'' Billardia novaezealandiae'' *'' Billardia subrufa'' References Lafoeidae Hydrozoan genera {{Leptothecata-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptothecata
Leptothecata, or thecate hydroids, are an order (biology), order of hydrozoans in the phylum Cnidaria. Their closest living relatives are the athecate hydroids, which are similar enough to have always been considered closely related, and the very apomorphic Siphonophorae, which were placed outside the "Hydroida". Given that there are no firm rules for synonym (biology), synonymy for high-ranked taxa, alternative names like Leptomedusa, Thecaphora or Thecata, with or without the ending emended to "-ae", are also often used for Leptothecata. Leptothecata is surrounded by a chitinous outer layer as its exoskeleton, including gonophores, their reproductive organ. Leptothecata obtain radial symmetry, in which their gonads can be found in their radial canals. Their morphological characters normally have ranged from benthic to planktonic stages. Characters associated with benthic are the polyps and colony forms, while planktonic is medusae. Leptothecata has a vast and complex variation a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrozoan
Hydrozoa (hydrozoans; ) are a taxonomic class of individually very small, predatory animals, some solitary and some colonial, most of which inhabit saline water. The colonies of the colonial species can be large, and in some cases the specialized individual animals cannot survive outside the colony. A few genera within this class live in freshwater habitats. Hydrozoans are related to jellyfish and corals and belong to the phylum Cnidaria. Some examples of hydrozoans are the freshwater jelly (''Craspedacusta sowerbyi''), freshwater polyps ('' Hydra''), ''Obelia'', Portuguese man o' war (''Physalia physalis''), chondrophores (Porpitidae), "air fern" (''Sertularia argentea''), and pink-hearted hydroids (''Tubularia''). Anatomy Most hydrozoan species include both a polypoid and a medusoid stage in their lifecycles, although a number of them have only one or the other. For example, ''Hydra'' has no medusoid stage, while '' Liriope'' lacks the polypoid stage. Polyps The hydroid f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
