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Chilatherina Axelrodi
Axelrod's rainbowfish (''Chilatherina axelrodi'') is a species of rainbowfish in the subfamily Melanotaeniinae. It is found in Papua New Guinea in the Yungkiri stream in the north western part of that nation. Typically its preferred habitat is a narrow stream with gentle moving, cloudy water surrounded by lush rainforest. Description The males of Axelrod's rainbowfish are bluish-grey to greenish-brown in colour on the dorsal part of their body and silvery-grey to whitish on the ventral part. There are around 10 short bars along the centre of flanks, spaced roughly two scales apart and these merge to form a more or less solid blackish stripe along the caudal peduncle. The lower part of the body has about 6-10 faint dusky bars with those on side of abdomen more obvious than the others. On the back and upper flanks there are a number of bluish stripes while the lower part of the body is marked with faint yellow stripes which border each longitudinal scale row. The dorsal, anal and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gerald R
Gerald is a male Germanic given name meaning "rule of the spear" from the prefix ''ger-'' ("spear") and suffix ''-wald'' ("rule"). Variants include the English given name Jerrold, the feminine nickname Jeri and the Welsh language Gerallt and Irish language Gearalt. Gerald is less common as a surname. The name is also found in French as Gérald. Geraldine is the feminine equivalent. Given name People with the name Gerald include: Politicians * Gerald Boland, Ireland's longest-serving Minister for Justice * Gerald Ford, 38th President of the United States * Gerald Gardiner, Baron Gardiner, Lord Chancellor from 1964 to 1970 * Gerald Häfner, German MEP * Gerald Klug, Austrian politician * Gerald Lascelles (other), several people * Gerald Nabarro, British Conservative politician * Gerald S. McGowan, US Ambassador to Portugal * Gerald Wellesley, 7th Duke of Wellington, British diplomat, soldier, and architect Sports * Gerald Asamoah, Ghanaian-born German football player * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bewani Mountains
The Bewani Mountains form a mountain range in northwestern Papua New Guinea. Together with the Torricelli Mountains and Prince Alexander Mountains it forms the North Coastal Range of Papua New Guinea.Birdlife International: North Papuan mountains retrieved 11 August 2010 The highest point of the mountains is at 1,960 m. The Bewani languages and various other are spoken in the region. Geology The Bewani-Torricelli-Prince Alexander Mountains, are presumed to have been formed as an island arc in the Late[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomy Articles Created By Polbot
Taxonomy is the practice and science of categorization or classification (general theory), classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. Among other things, a taxonomy can be used to organize and index knowledge (stored as documents, articles, videos, etc.), such as in the form of a library classification system, or a Taxonomy for search engines, search engine taxonomy, so that users can more easily find the information they are searching for. Many taxonomies are hierarchy, hierarchies (and thus, have an intrinsic tree structure), but not all are. Originally, taxonomy referred only to the categorisation of organisms or a particular categorisation of organisms. In a wider, more general sense, it may refer to a categorisation of things or concepts, as well as to the principles underlying such a categorisation. Taxonomy organizes taxonomic uni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Gerald R
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of New Guinea
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilatherina
''Chilatherina'' is a genus of rainbowfishes that is endemic to freshwater in New Guinea. Species There are currently 11 recognized species in this genus: * '' Chilatherina alleni'' Price, 1997 * '' Chilatherina axelrodi'' G. R. Allen, 1979 (Axelrod's rainbowfish) * '' Chilatherina bleheri'' G. R. Allen, 1985 (Bleher's rainbowfish) * '' Chilatherina bulolo'' ( Whitley, 1938) (Bulolo rainbowfish) * '' Chilatherina campsi'' ( Whitley, 1957) (Highlands rainbowfish) * ''Chilatherina crassispinosa'' ( M. C. W. Weber, 1913) (Silver rainbowfish) * ''Chilatherina fasciata'' ( M. C. W. Weber, 1913) (Barred rainbowfish) * ''Chilatherina lorentzii'' ( M. C. W. Weber, 1907) (Lorentz's rainbowfish) * ''Chilatherina pagwiensis'' G. R. Allen & Unmack, 2012Allen, G.R. & Unmack, P.J. (2012): A new species of Rainbowfish (''Chilatherina'': Melanotaeniidae), from the Sepik River System of Papua New Guinea. ''aqua, International Journal of Ichthyology, 18 (4): 227-237.'' * ''Chilatherina pricei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbert R
Herbert may refer to: People Individuals * Herbert (musician), a pseudonym of Matthew Herbert Name * Herbert (given name) * Herbert (surname) Places Antarctica * Herbert Mountains, Coats Land * Herbert Sound, Graham Land Australia * Herbert, Northern Territory, a rural locality * Herbert, South Australia. former government town * Division of Herbert, an electoral district in Queensland * Herbert River, a river in Queensland * County of Herbert, a cadastral unit in South Australia Canada * Herbert, Saskatchewan, Canada, a town * Herbert Road, St. Albert, Canada New Zealand * Herbert, New Zealand, a town * Mount Herbert (New Zealand) United States * Herbert, Illinois, an unincorporated community * Herbert, Michigan, a former settlement * Herbert Creek, a stream in South Dakota * Herbert Island, Alaska Arts, entertainment, and media Fictional entities * Herbert (Disney character) * Herbert Pocket (''Great Expectations'' character), Pip's close friend and roommate in the Cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sandaun Province
Sandaun Province (formerly West Sepik Province) is the northwesternmost mainland province of Papua New Guinea. It covers an area of 35,920 km2 (13868 m2) and has a population of 248,411 (2011 census). The capital is Vanimo. In July 1998 the area surrounding the town Aitape was hit by an enormous tsunami caused by a Magnitude 7.0 earthquake which killed over 2,000 people. The five villages along the west coast of Vanimo towards the International Border are namely; Lido, Waromo, Yako, Musu and Wutung. Name Sandaun is a Tok Pisin word derived from English "sun down," since the province is located in the west of the country, where the sun sets. The province was formerly named West Sepik Province, for the Sepik River that flows through the province and forms part of the province's southern border. Physical Geography The Sandaun Province has beaches along the northern coast, as well as mountainous areas throughout the province, primarily in the southern area of the province. Sev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Measurement
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 (sharks and rays), as well as some other fishes. Total length meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rainbowfish
The rainbowfish or Melanotaeniidae is a family of small, colourful freshwater fish found in northern and eastern Australia, New Guinea (including islands in Cenderawasih Bay and Raja Ampat Islands in Indonesia), Sulawesi and Madagascar. The largest rainbowfish genus, ''Melanotaenia'', derives from the ancient Greek ''melano'' (black) and ''taenia'' (banded). Translated, it means "black-banded", and is a reference to the often striking lateral black bands that run along the bodies of those in the genus ''Melanotaenia''. Characteristics The Melanotaeniidae is characterised by having their distal premaxillary teeth enlarged. They have a compressed body with the two dorsal fins being separated but with only a small gap between them. There are 3–7 spines in the first dorsal fin while the second has 6–22 rays, with the first ray being a stout spine in some species, the anal fin has 10–30 rays and, again, the first may be a stout spine in some species. The lateral line is either ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelvic Fin
Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. Structure and function Structure In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays (lepidotrichia) are positioned distally from the radials. There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body. Pelvic fin structures can be extremely specialized in actinopterygians. Gobiids and lumpsuckers modify their pelvic fins into a sucker disk that allow them to adhere to the substrate or climb structures, such as waterfalls. In priapiumfish, males have modified their pelvic structures into a spiny copulatory device that grasps the female during mating. File:Pelvic fin skeleton.png, Pelvic fin skeleton for ''Danio rerio'', zebrafish. File:Zuignap waarmee de zwartbekgrond ... [...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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