|
Ipnops Meadi
''Ipnops meadi'', also known as the grideye fish, is a highly specialized species of Placodithyran abyssal fish found in the Clarion-Clipperton Zone of the Indo-Pacific Ocean. The species was named after Giles W. Mead of the Harvard Museum of Comparative Zoology, a biology professor at Harvard, deep sea explorer, and ichthyologist. History ''Ipnops'' were first discovered and named in 1878 by Dr. Albert Günther during the expedition of . ''Ipnops'' was originally classified as a broad species of abyssal flat-headed fish with either very small eyes or membranes covering their eyes. Due to recent scientific advancements and increased deep-sea expeditions, the ''Ipnops'' genus now divided into three species (''I.agassizi'', ''I.meadi'', ''I.murrayi'') based on geographic location. Most information on ''Ipnops'' species has been collected via deep-sea expeditions, the most prominent being HMS ''Challenger'' (1878), “Galathea”(1950–52), and “Okeanos” (2017). Since ''Ipnops' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jørgen G
Jørgen is a Danish, Norwegian, and Faroese masculine given name cognate to George People with the given name Jørgen * Jørgen Aall (1771–1833), Norwegian ship-owner and politician * Jørgen Andersen (1886–1973), Norwegian gymnast * Jørgen Aukland (born 1975), Norwegian cross-country skier * Jørgen Beck (1914–1991), Danish film actor * Jørgen Bentzon (1897–1951), Danish composer * Jørgen Bjelke (1621–1696), Norwegian officer and nobleman * Jørgen Bjørnstad (1894–1942), Norwegian gymnast * Jørgen Bojsen-Møller (born 1954), Danish sailor and Olympic Champion * Jørgen Thygesen Brahe (1515–1565), Danish nobleman * Jørgen Brønlund (1877–1907), Greenlandic polar explorer, educator, and catechist * Jørgen Bru (1881–1974) was a Norwegian sport shooter * Jørgen Brunchorst (1862–1917), Norwegian natural scientist, politician and diplomat * Jørgen Buckhøj (1935–1994), Danish actor * Jørgen Wright Cappelen (1805–1878), Norwegian bookseller and publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giles W
Giles may refer to: People * Giles (given name), male given name (Latin: ''Aegidius'') * Giles (surname), family name * Saint Giles (650–710), 7th–8th-century Christian hermit saint * Giles of Assisi, Aegidius of Assisi, 13th-century companion of St. Francis of Assisi * Giles of Rome (1243–1316), 13th-century archbishop * Carl Giles (1916–1995), British cartoonist for the ''Daily Express'' known simply as "Giles" ** Giles family, a fictional family featured in cartoons by Giles * Herbert Giles (1845–1935), British diplomat and sinologist, co-author of the Wade–Giles Chinese transliteration system Places ;United States * Giles, Utah, a US ghost town * Giles, West Virginia * Giles County, Tennessee, US * Giles County, Virginia, US ;Australia * Electoral district of Giles, a state electoral district in South Australia * Giles Weather Station near the Western Australian - South Australian border * Giles Land District, a land district (cadastral division) of Western ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galathea Expeditions
The ''Galathea'' expeditions comprise a series of three Danish ship-based scientific research expeditions in the 19th, 20th and 21st centuries, carried out with material assistance from the Royal Danish Navy and, with regard to the second and third expeditions, under the auspices of the Danish Expedition Foundation. All three expeditions circumnavigated the world from west to east and followed similar routes. First expedition Preparations The first ''Galathea'' Expedition took place from 1845 to 1847 and had political and scientific objectives. It was initiated by the King of Denmark, Christian VIII, with its main purposes the handover of the Danish colonies in India, following their sale to the British East India Company, as well as a final Danish attempt to explore and recolonise the Nicobar Islands in the Indian Ocean. Additional aims were the expansion of trade with China and the discovery of new trading opportunities, as well as making extensive scientific collections.B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ipnops
''Ipnops'' is a genus of deep-sea fish in the family Ipnopidae, which also includes the better-known tripodfish (''Bathypterois grallator''). ''Ipnops'' are small, slender fish that live close to the ocean floor in the bathyal and abyssal zones. The genus is notable for its unusual eyes. Species There are currently three recognized species in this genus: * '' Ipnops agassizii'' Garman, 1899 (grideye fish) * ''Ipnops meadi'' J. G. Nielsen, 1966 * ''Ipnops murrayi'' Günther, 1878 Distribution Specimens of ''I. murrayi'' and ''I. agassizi'' have been caught at depths of 1392–3475 m; ''I. murrayi'' occurs in the Atlantic Ocean while ''I. agassizi'' occurs in the Indo-Pacific region. ''I. meadi'' is also found in the Indo-Pacific, but occurs deeper at 3310–4970 m. Biology ''Ipnops'' has only recently been observed in the wild, so details of their life history has mostly been inferred from the characteristics of captured specimens. They have large mouths with numerous small te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palatine Bone
In anatomy, the palatine bones () are two irregular bones of the facial skeleton in many animal species, located above the uvula in the throat. Together with the maxillae, they comprise the hard palate. (''Palate'' is derived from the Latin ''palatum''.) Structure The palatine bones are situated at the back of the nasal cavity between the maxilla and the pterygoid process of the sphenoid bone. They contribute to the walls of three cavities: the floor and lateral walls of the nasal cavity, the roof of the mouth, and the floor of the orbits. They help to form the pterygopalatine and pterygoid fossae, and the inferior orbital fissures. Each palatine bone somewhat resembles the letter L, and consists of a horizontal plate, a perpendicular plate, and three projecting processes—the pyramidal process, which is directed backward and lateral from the junction of the two parts, and the orbital and sphenoidal processes, which surmount the vertical part, and are separated by a dee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vomer
The vomer (; lat, vomer, lit=ploughshare) is one of the unpaired facial bones of the skull. It is located in the midsagittal line, and articulates with the sphenoid, the ethmoid, the left and right palatine bones, and the left and right maxillary bones. The vomer forms the inferior part of the nasal septum in humans, with the superior part formed by the perpendicular plate of the ethmoid bone. The name is derived from the Latin word for a ploughshare and the shape of the bone. In humans The vomer is situated in the median plane, but its anterior portion is frequently bent to one side. It is thin, somewhat quadrilateral in shape, and forms the hinder and lower part of the nasal septum; it has two surfaces and four borders. The surfaces are marked by small furrows for blood vessels, and on each is the nasopalatine groove, which runs obliquely downward and forward, and lodges the nasopalatine nerve and vessels. Borders The ''superior border'', the thickest, presents a dee ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gill Raker
Gill rakers in fish are bony or cartilaginous processes that project from the branchial arch (gill arch) and are involved with suspension feeding tiny prey. They are not to be confused with the gill filaments that compose the fleshy part of the gill used for gas exchange. Rakers are usually present in two rows, projecting from both the anterior and posterior side of each gill arch. Rakers are widely varied in number, spacing, and form. By preventing food particles from exiting the spaces between the gill arches, they enable the retention of food particles in filter feeders. The structure and spacing of gill rakers in fish determines the size of food particles trapped, and correlates with feeding behavior. Fish with densely spaced, elongated, comb-like gill rakers are efficient at filtering tiny prey, whereas carnivores and omnivores often have more widely spaced gill rakers with secondary projections. Because gill raker characters often vary between closely related taxa, they are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otolith
An otolith ( grc-gre, ὠτο-, ' ear + , ', a stone), also called statoconium or otoconium or statolith, is a calcium carbonate structure in the saccule or utricle of the inner ear, specifically in the vestibular system of vertebrates. The saccule and utricle, in turn, together make the ''otolith organs''. These organs are what allows an organism, including humans, to perceive linear acceleration, both horizontally and vertically (gravity). They have been identified in both extinct and extant vertebrates. Counting the annual growth rings on the otoliths is a common technique in estimating the age of fish. Description Endolymphatic infillings such as otoliths are structures in the saccule and utricle of the inner ear, specifically in the vestibular labyrinth of all vertebrates (fish, amphibians, reptiles, mammals and birds). In vertebrates, the saccule and utricle together make the ''otolith organs''. Both statoconia and otoliths are used as gravity, balance, movement, and d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ipnopidae
The Ipnopidae (deepsea tripod fishes) are a family of fishes in the order Aulopiformes. They are small, slender fishes, with maximum length ranging from about . They are found in temperate and tropical deep waters of the Atlantic, Indian, and Pacific Oceans. A number of species, especially in the genus '' Bathypterois'', have elongated pectoral and pelvic fins. In the case of the tripodfish, ''Bathypterois grallator'', these fins are three times as long as the body — up to a meter in length — and are used for standing on the sea floor. Ipnopids either have tiny eyes, or very large eyes that lack any lens A lens is a transmissive optical device which focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (''elements ...; in either case they have very poor vision and are unable to form an image. Ipnopidae is a species of fish that have adap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Jørgen G
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] |
