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Gnathophiurina
The Gnathophiurina are a group of Ophiuroidea mostly treated as suborder (but at first as an order Gnathophiurida, and sometimes as infraorder of OphiurinaSmith, A.B.; Paterson, G.L.J. . Ophiuroid phylogeny and higher taxonomy: morphological, molecular and palaeontological perspectives. Zool. J. Linn. Soc. 114 (1995) or not used at all). Families * Amphilepididae Matsumoto, 1915 * Amphiuridae Ljungman, 1867 * Ophiactidae Matsumoto, 1915 * Ophiocomidae Ljungman, 1867 * Ophionereididae Ophionereididae are a family of brittle star Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the ... Ljungman, 1867 * Ophiothricidae Ljungman, 1867 References Ophiurida {{ophiuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphiuridae
Amphiuridae (commonly called long-armed burrowing brittle stars or burrowing brittle stars) are a large family of brittle stars of the suborder Gnathophiurina The Gnathophiurina are a group of Ophiuroidea mostly treated as suborder (but at first as an order Gnathophiurida, and sometimes as infraorder of OphiurinaSmith, A.B.; Paterson, G.L.J. . Ophiuroid phylogeny and higher taxonomy: morphological, .... Some species are used to study echinoderm development (e.g. '' Amphipholis kochii'' and '' Amphioplus abditus'') and bioluminescence (the dwarf brittle star, ''Amphipholis squamata''). Characteristics Amphiuridae are generally small brittlestars. Their jaws are always with two apical papillae at the tip, and one or more papillae on each side. Systematics and phylogeny Amphiuridae are the most diverse family of Ophiurida with over 200 species. The family contains the following genera: In addition, two extinct genera are known: * †'' Deckersamphiura'' Jagt, 2000 * â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphilepididae
Amphilepididae are a small family of brittle stars of the suborder Gnathophiurina The Gnathophiurina are a group of Ophiuroidea mostly treated as suborder (but at first as an order Gnathophiurida, and sometimes as infraorder of OphiurinaSmith, A.B.; Paterson, G.L.J. . Ophiuroid phylogeny and higher taxonomy: morphological, .... It contains two genera, ''Amphicutis'' and ''Amphilepis'' http://www.marinespecies.org/aphia.php?p=taxdetails&id=123608 MarineSpecies.org - Amphilepididae *'' Amphicutis'' *'' Amphilepis'' References Gnathophiurina Echinoderm families {{ophiuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiocomidae
Ophiocomidae are a family of brittle stars of the suborder Ophiurina. Systematics and phylogeny Ophiocomidae has been placed (along with Ophionereididae) to the superfamily Ophiocomidea and infraorder Gnathophiurina or suborder Gnathophiurina in different classifications. Genera The following genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ... are included in the family according to the World Register of Marine Species (WoRMS): World Register of Marine Species. Retrieved 2011-08-30. * Subfamily Ophiocominae **Genus '' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiothricidae
Ophiotrichidae are a family of brittle stars within the suborder Gnathophiurina. All of its species have arms with delicate, translucent, thorny spines. Their arms are flexible in all directions. Their jaws contain clusters of well-developed tooth papillae on the apex but not on the sides. There are no mouth papillae. Inside the mouth edge there is a second pair of tube feet. They show large radial shields. The dorsal surface of the disc is covered with spines and thorny towers. Systematics Ophiotrichidae contains the following genera: *''Asteria'' (''nomen dubium'') *'' Gymnolophus'' Brock, 1888 *'' Lissophiothrix'' H.L. Clark, 1938 *'' Macrophiothrix'' H.L. Clark, 1938 *'' Ophioaethiops'' Brock, 1888 *'' Ophiocampsis'' Duncan, 1887 *'' Ophiocnemis'' Müller & Troschel, 1842 *'' Ophiogymna'' Ljungman, 1866 *'' Ophiolophus'' Marktanner-Turneretscher, 1887 *'' Ophiomaza'' Lyman, 1871 *'' Ophiophthirius'' Döderlein, 1898 *'' Ophiopsammium'' Lyman, 1874 *'' Ophiopteron'' Ludwig, 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiuroidea
Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms for locomotion. The ophiuroids generally have five long, slender, whip-like arms which may reach up to in length on the largest specimens. The Ophiuroidea contain two large clades, Ophiurida (brittle stars) and Euryalida (basket stars). Over 2,000 species of brittle stars live today. More than 1,200 of these species are found in deep waters, greater than 200 m deep. Range The ophiuroids diverged in the Early Ordovician. Ophiuroids can be found today in all of the major marine provinces, from the poles to the tropics. Basket stars are usually confined to the deeper parts of this range; Ophiuroids are known even from abyssal (>6,000 m) depths. However, brittle stars are also common members of reef communities, where they hide under rocks and eve ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiurina
Ophiurina are a suborder of brittle stars containing the majority of living brittle star species. Characteristics Ophiurina contain a large number of ophiuroids with characteristics ranging from skin just covering the disk, the presence or absence of arm combs, and an infradental papilla occurring with a distinct diastema between it and its flanking oral papillae Systematics There is currently no consensus as to the subdivision of the Ophiurina (traditionally, the infraorders have been treated as suborders). It contains the genera Amphiura, Amphipholis, and Ophiacantha. The suborder has been divided into the following recent infraorders and families :Smith, A.B.; Paterson, G.L.J., Ophiuroid phylogeny and higher taxonomy: morphological, molecular and palaeontological perspectives. Zool. J. Linn. Soc. 114 (1995) *Ophiacanthidae Hemieuryalina *Hemieuryalidae Chilophiurina *Ophiuridae Gnathophiurina *Amphilepididae *Amphiuridae *Ophiothricidae *Ophiactidae *Ophionereididae *Ophio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amphipholis Squamata
''Amphipholis squamata'', common names brooding snake star and dwarf brittle star, is a species complexLe Gac, M., Féral, J.P., Poulin, E., Veyret, M. & Chenuil, A. (2004) ''Identification of allopatric clades in the cosmopolitan ophiuroid species complex ''Amphipholis squamata'' (Echinodermata). The end of a paradox?'' Marine Ecology Progress Series, 278: 171–178. of brittle stars in the family Amphiuridae. Description This species is small, grey to bluish-white, and phosphorescent. Brooding individuals emit more light than non-brooding individuals. It has thin, short arms around 20 mm long. The round disc is 3 to 5mm, and has a scale covering with D-shaped radial plates. It has rhombic-shaped mouth shields and extremely wide mouth papillae. Distribution ''Amphipholis squamata'' is found in all parts of the British Isles and also in Ireland. It has been recorded in many other parts of the world, including France,New Zealand and other places, with one conference pape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suborder
Order () is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, their orders may follow consistent ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infraorder
Order () is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. For some groups of organisms, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiactidae
Ophiactidae are a family of brittle stars. Genera The following genera are recognised by the World Register of Marine Species The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive catalogue and list of names of marine organisms. Content The content of the registry is edited and maintained by scien ... : *'' Hemipholis'' Lyman, 1865 *'' Histampica'' A.M. Clark, 1970 *'' Ophiactis'' Lütken, 1856 *'' Ophiopholis'' Müller & Troschel, 1842 *'' Ophiopus'' Ljungman, 1867 References Ophiurida Echinoderm families {{Ophiuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophionereididae
Ophionereididae are a family of brittle star Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms for locomot ...s. Systematics Ophionereididae has been placed (along with Ophiocomidae) to the superfamily Ophiocomidea and infraorder Chilophiurina or suborder Chilophiurina in different classifications. Ophionereididae contains the following genera: *'' Ophiocrasis'' *'' Ophiodoris'' *'' Ophionereis'' *'' Ophioneroides'' *'' Ophiotriton'' References Ophiurida Echinoderm families {{Ophiuroidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
