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Histiodraco
''Histiodraco'' is a monotypic genus of marine ray-finned fish, its only known species being ''Histiodraco velifer'', belonging to the family Artedidraconidae, the barbeled plunderfishes. It is native to the Southern Ocean in the waters around Antarctica. Taxonomy ''Histiodraco'' was first formally described as a genus in 1914 by the English ichthyologist Charles Tate Regan. In 1914 Regan had described a fish, collected on the Terra Nova Expedition led by Captain Robert Falcon Scott under the name ''Dolloidraco velifer'' with the type locality given as McMurdo Sound. However, later that year he described the new genus ''Histiodraco'' for ''D. velifer'', this species becoming the type species of that genus by monotypy. The generic name is a compound of ''histion'' which means "sail" and ''draco'' which is likely a reference to the genus '' Dolloidraco'', to which Regan had assigned this species originally and then proposed this genus shortly after describing its sole member. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artedidraconidae
The Artedidraconidae, barbeled plunderfishes, are a family of marine ray-finned fishes, notothenioids belonging to the Perciform suborder Notothenioidei. The family comprises four genera. These fishes are endemic to deep waters off Antarctica. Taxonomy Artedidraconidae was first described as a family in 1988 by the American ichthyologist Richard Eakin with ''Artedidraco'' as its type genus, the type species of '' Artedidraco'' is '' A. mirus'' which was described in 1905 by the Swedish zoologist Einar Lönnberg. The genera in the family were previously classified as part of the Harpagiferidae. The family is classified within the suborder Notothenioidei of the order Perciformes. The name of the family is a compound of Artedi, honouring the Swedish naturalist Peter Artedi who was known as the “father of ichthyology,” and who was born 200 years before Lönnberg described ''A. mirus'' with ''draco'', from ''dracœna'' meaning “dragon” an ancient Greek name for the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Tate Regan
Charles Tate Regan FRS (1 February 1878 – 12 January 1943) was a British ichthyologist, working mainly around the beginning of the 20th century. He did extensive work on fish classification schemes. Born in Sherborne, Dorset, he was educated at Derby School and Queens' College, Cambridge and in 1901 joined the staff of the Natural History Museum, where he became Keeper of Zoology, and later director of the entire museum, in which role he served from 1927 to 1938. Regan was elected Fellow of the Royal Society in 1917. Regan mentored a number of scientists, among them Ethelwynn Trewavas, who continued his work at the British Natural History Museum. Species Among the species he described is the Siamese fighting fish (''Betta splendens''). In turn, a number of fish species have been named ''regani'' in his honour: *A Thorny Catfish '' Anadoras regani'' (Steindachner, 1908) *The Dwarf Cichlid '' Apistogramma regani'' *'' Apogon regani'' *A Catfish '' Astroblepus regani'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compound (linguistics)
In linguistics, a compound is a lexeme (less precisely, a word or sign) that consists of more than one stem. Compounding, composition or nominal composition is the process of word formation that creates compound lexemes. Compounding occurs when two or more words or signs are joined to make a longer word or sign. A compound that uses a space rather than a hyphen or concatenation is called an open compound or a spaced compound; the alternative is a closed compound. The meaning of the compound may be similar to or different from the meaning of its components in isolation. The component stems of a compound may be of the same part of speech—as in the case of the English word ''footpath'', composed of the two nouns ''foot'' and ''path''—or they may belong to different parts of speech, as in the case of the English word ''blackbird'', composed of the adjective ''black'' and the noun ''bird''. With very few exceptions, English compound words are stressed on their first componen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Victoria Land
Victoria Land is a region in eastern Antarctica which fronts the western side of the Ross Sea and the Ross Ice Shelf, extending southward from about 70°30'S to 78°00'S, and westward from the Ross Sea to the edge of the Antarctic Plateau. It was discovered by Captain James Clark Ross in January 1841 and named after Queen Victoria. The rocky promontory of Minna Bluff is often regarded as the southernmost point of Victoria Land, and separates the Scott Coast to the north from the Hillary Coast of the Ross Dependency to the south. The region includes ranges of the Transantarctic Mountains and the McMurdo Dry Valleys (the highest point being Mount Abbott in the Northern Foothills), and the flatlands known as the Labyrinth. The Mount Melbourne is an active volcano in Victoria Land. Early explorers of Victoria Land include James Clark Ross and Douglas Mawson. In 1979, scientists discovered a group of 309 meteorites in Antarctica, some of which were found near the Al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weddell Sea
The Weddell Sea is part of the Southern Ocean and contains the Weddell Gyre. Its land boundaries are defined by the bay formed from the coasts of Coats Land and the Antarctic Peninsula. The easternmost point is Cape Norvegia at Princess Martha Coast, Queen Maud Land. To the east of Cape Norvegia is the King Haakon VII Sea. Much of the southern part of the sea is covered by a permanent, massive ice shelf field, the Filchner-Ronne Ice Shelf. The sea is contained within the two overlapping Antarctic territorial claims of Argentine Antarctica, the British Antarctic Territory, and also resides partially within the Antarctic Chilean Territory. At its widest the sea is around across, and its area is around . Various ice shelves, including the Filchner-Ronne Ice Shelf, fringe the Weddell sea. Some of the ice shelves on the east side of the Antarctic Peninsula, which formerly covered roughly of the Weddell Sea, had completely disappeared by 2002. The Weddell Sea has been deemed b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artedidraco
''Artedidraco'' is a genus of marine ray-finned fishes belonging to the family Artedidraconidae, the barbeled plunderfishes. They are native to the Southern Ocean. Taxonomy ''Artedidraco'' was first described as a genus in 1905 by the Swedish zoologist Einar Lönnberg when he created the genus for ''Artedidraco mirus'', a new species of fish from South Georgia he was describing following the collection of its types by the Swedish Antarctic Expedition. As it was the only species in the enw genus it was the type species by monotypy. The generic name is a compound of Artedi, honouring the Swedish naturalist Peter Artedi who was known as the “father of ichthyology,” and who was born 200 years before Lönnberg described ''A. mirus'' with ''draco'', from ''dracœna'' meaning “dragon” an ancient Greek name for the weeverfish genus ''Trachinus'' , although this may be a reference to the relationship Lönnberg mentioned to '' Draconetta'' which was thought to be a member of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pogonophryne
''Pogonophryne'' is a genus of marine ray-finned fishes belonging to the family Artedidraconidae, the barbeled plunderfishes. They are native to the Southern Ocean. Taxonomy ''Pogonophryne'' was first described as a genus in 1914 by the English ichthyologist Charles Tate Regan when he described a new species of fish, ''Pogonophryne scotti'', which had been collected on the Terra Nova Expedition in the Ross Sea. ''P. scotti'' is, therefore, the type species of ''Pogonophryne'' by monotypy. The genus name is a compound of ''pogonos'' meaning "beard", a reference to the barbel on the chin of ''P. scotti'', and "phryne" which means "toad", possibly an allusion to the bumps and knobs on the head, like the skin of a toad. Species There are currently 28 recognized species in this genus: * '' Pogonophryne albipinna'' Eakin, 1981 (White-fin plunderfish) * '' Pogonophryne barsukovi'' Andriashev, 1967 (Stub-beard plunderfish) * '' Pogonophryne bellingshausenensis'' Eakin, Eastman & Ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Total Length
Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. Simply put, this measurement excludes the length of the caudal (tail) fin. * Total length (TL) is the length of a fish measured from the tip of the snout to the tip of the longer lobe of the caudal fin, usually measured with the lobes compressed along the midline. It is a straight-line measure, not measured over the curve of the body. Standard length measurements are used with Teleostei (most bony fish), while total length measurements are used with Myxini ( hagfish), Petromyzontiformes ( lampreys), and (usually) Elasmobranchii (shark Sharks are a group of elasmobranch fish characte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Line
The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these signals into electrical impulses via excitatory synapses. Lateral lines serve an important role in schooling behavior, predation, and orientation. Fish can use their lateral line system to follow the vortices produced by fleeing prey. Lateral lines are usually visible as faint lines of pores running lengthwise down each side, from the vicinity of the gill covers to the base of the tail. In some species, the receptive organs of the lateral line have been modified to function as electroreceptors, which are organs used to detect electrical impulses, and as such, these systems remain closely linked. Most amphibian larvae and some fully aquatic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barbel (anatomy)
In fish anatomy and turtle anatomy, a barbel is a slender, whiskerlike sensory organ near the mouth. Fish that have barbels include the catfish, the carp, the goatfish, the hagfish, the sturgeon, the zebrafish, the black dragonfish and some species of shark such as the sawshark. Barbels house the taste buds of such fish and are used to search for food in murky water. The word "barbel" comes from the Middle Latin ''barbula'', for "little beard." Barbels are sometimes erroneously referred to as '' barbs'', which are found in bird feathers for flight. Barbels may be located in a variety of locations on the head of a fish. "Maxillary barbels" refers to barbels on either side of the mouth. Barbels may also be nasal, extending from the nostrils. Also, barbels are often mandibular or mental, being located on the chin. In fish, barbels can take the form of small, fleshy protrusions or long, cylindrical shaped extensions of the head of a fish. The cylindrical barbel shapes are b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectoral Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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