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Ridgehead
Ridgeheads, also known as bigscales, are a family (Melamphaidae, from the Greek ''melanos'' lackand ''amphi'' y both sides of small, deep-sea stephanoberyciform fish. The family contains approximately 37 species in five genera; their distribution is worldwide, but ridgeheads are absent from the Arctic Ocean and Mediterranean Sea. Although the family is one of the most widespread and plentiful of deep-sea families, none of its members are of interest to commercial fishery. These fish are named for their large scales and pronounced cranial ridges, as well as for their typically dark brown to black coloration. Ridgeheads are the largest and most diverse family of their order. Description Typical of the Stephanoberyciformes, the melamphid body is robust, oblong, subcylindrical, and slightly compressed laterally. The head is large and scaleless, with its profile either bluntly rounded or with a sharp frontal angle; it is conspicuous for its prominent ridges, which are covered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephanoberyciform
The Stephanoberyciformes are an order of marine ray-finned fishes, consisting of about 68 species, the majority (61) of which belong to the ridgehead family (Melamphaidae). The Stephanoberyciformes are mostly uncommon deep-sea species with little, if any, importance to commercial fishery. They share many morphological similarities with the Beryciformes, their sister order. Some sources classify their other close relatives, the whalefishes, as a superfamily herein, named Cetomimoidea. Most taxa traditionally placed here would then be the Stephanoberyciodea. The families are: * Melamphaidae – ridgeheads (about 61 species) * Gibberichthyidae – gibberfishes (2 species) * Stephanoberycidae – pricklefishes (4 species) * Hispidoberycidae - Bristlyskin (1 species) Common characteristics include a generally rounded body, a toothless palate, rather thin skull bones, and a missing orbitosphenoid bone (except for '' Hispidoberyx''). The gibberfishes on the other hand ap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scopelogadus Mizolepis Mizolepis
''Scopelogadus'' is a genus of ridgeheads. The generic name derives from the Greek σκόπελος (''skopelos'', "lanternfish Lanternfishes (or myctophids, from the Greek μυκτήρ ''myktḗr'', "nose" and ''ophis'', "serpent") are small mesopelagic fish of the large family Myctophidae. One of two families in the order Myctophiformes, the Myctophidae are represent ...") and γάδος (''gados'', "(cod) fish"). Species There are currently three recognized species in this genus: * '' Scopelogadus beanii'' ( Günther, 1887) (Bean's bigscale) * '' Scopelogadus mizolepis'' (Günther, 1878) ** '' Scopelogadus mizolepis bispinosus'' ( C. H. Gilbert, 1915) (Twospine bigscale) ** '' Scopelogadus mizolepis mizolepis'' (Günther, 1878) (Ragged bigscale) * '' Scopelogadus perplexus'' Kotyar, 2021Kotlyar, A.N. Revision of the Genus Scopelogadus (Melamphaidae). 3. S. bispinosus and S. perplexus sp. n.. J. Ichthyol. 61, 1–16 (2021). https://doi.org/10.1134/S0032945221010094 * '' S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sio (genus)
''Sio nordenskjoldii'', or Nordenskjold's bigscale, is a species of ridgehead found in the southern oceans at depths of from . This species grows to a length of SL. This species is the only known member of its genus. This species is of minor importance to commercial fisheries Commercial fishing is the activity of catching fish and other seafood for commercial profit, mostly from wild fisheries. It provides a large quantity of food to many countries around the world, but those who practice it as an industry must often .... References * Stephanoberyciformes Monotypic fish genera Fish described in 1905 {{Stephanoberyciformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slimehead
Slimeheads, also known as roughies and redfish, are mostly small, exceptionally long-lived, deep-sea beryciform fish constituting the family Trachichthyidae (derived from the Greek ''trachys'' – "rough" and ''ichthys'' – "fish"). Found in temperate to tropical waters of the Atlantic, Indian, and Pacific Oceans, the family comprises about 50 species in eight genera. Slimeheads are named for the network of muciferous canals riddling their heads. The larger species – namely the orange roughy (''Hoplostethus atlanticus'') and Darwin's slimehead (''Gephyroberyx darwinii'') – are the target of extensive commercial fisheries off Australia and New Zealand. Many populations have already crashed, while others are showing signs of severe overfishing; due to slimeheads' slow rate of reproduction, the future viability of these fisheries has been put into question. Orange roughies are food fish and are marketed fresh and frozen, whereas Darwin's slimeheads are used for their oil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beryciform
The Beryciformes are a poorly-understood order of carnivorous ray-finned fishes consisting of 7 families, 30 genera, and 161 species. They feed on small fish and invertebrates. Beyond this, little is known about the biology of most member species because of their nocturnal habits and deepwater habitats. All beryciform species are marine and most live in tropical to temperate, deepwater environments. Most live on the continental shelf and continental slope, with some species being found as deep as . Some species move closer to the surface at night, while others live entirely in shallow water and are nocturnal, hiding in rock crevices and caves during the day. Several species are mesopelagic and bathypelagic. Beryciformes' bodies are deep and mildly compressed, typically with large eyes that help them see in darker waters. Colors range from red to yellow and brown to black, and sizes range from . Member genera include the alfonsinos, squirrelfishes, flashlight fishes, fangtooth fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poromitra Megalops
''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtained on October 7, 1968, marks the first discovery of a Poromitra member in the southeastern Pacific Ocean. Species There are currently 21 recognized species in this genus: * ''Poromitra atlantica'' (Norman, 1929) * ''Poromitra capito'' Goode & T. H. Bean, 1883 * ''Poromitra coronata'' ( Gilchrist & von Bonde, 1924) * ''Poromitra crassa'' Parin & Ebeling, 1980 * ''Poromitra crassiceps'' ( Günther, 1878) (Crested bigscale) * ''Poromitra cristiceps'' ( C. H. Gilbert, 1890) * ''Poromitra curilensis'' Kotlyar, 2008 * ''Poromitra decipiens'' Kotlyar, 2008 * ''Poromitra frontosa'' (Garman, 1899) * ''Poromitra gibbsi'' Parin & Borodulina, 1989 * ''Poromitra glochidiata'' Kotlyar, 2008 * ''Poromitra indooceanica'' Kotlyar, 2008 * ''Poromitra j ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scopelogadus
''Scopelogadus'' is a genus of ridgeheads. The generic name derives from the Greek σκόπελος (''skopelos'', "lanternfish") and γάδος (''gados'', "(cod) fish"). Species There are currently three recognized species in this genus: * '' Scopelogadus beanii'' ( Günther, 1887) (Bean's bigscale) * '' Scopelogadus mizolepis'' (Günther, 1878) ** '' Scopelogadus mizolepis bispinosus'' ( C. H. Gilbert, 1915) (Twospine bigscale) ** ''Scopelogadus mizolepis mizolepis ''Scopelogadus'' is a genus of ridgeheads. The generic name derives from the Greek σκόπελος (''skopelos'', "lanternfish Lanternfishes (or myctophids, from the Greek μυκτήρ ''myktḗr'', "nose" and ''ophis'', "serpent") are small ...'' (Günther, 1878) (Ragged bigscale) * '' Scopelogadus perplexus'' Kotyar, 2021Kotlyar, A.N. Revision of the Genus Scopelogadus (Melamphaidae). 3. S. bispinosus and S. perplexus sp. n.. J. Ichthyol. 61, 1–16 (2021). https://doi.org/10.1134/S0032945221010094 * '' Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scopeloberyx
''Scopeloberyx'' is a genus of ridgeheads. Species There are currently nine recognized species in this genus: * '' Scopeloberyx bannikovi'' Kotlyar, 2004 * '' Scopeloberyx malayanus'' ( M. C. W. Weber, 1913) * '' Scopeloberyx maxillaris'' (Garman, 1899) * '' Scopeloberyx microlepis'' (Norman Norman or Normans may refer to: Ethnic and cultural identity * The Normans, a people partly descended from Norse Vikings who settled in the territory of Normandy in France in the 10th and 11th centuries ** People or things connected with the Norm ..., 1937) (Southern bigscale) * '' Scopeloberyx opisthopterus'' ( A. E. Parr, 1933) * '' Scopeloberyx pequenoi'' Kotlyar, 2004 * '' Scopeloberyx robustus'' ( Günther, 1887) (Longjaw bigscale) * '' Scopeloberyx rossicus'' Kotlyar, 2004 * '' Scopeloberyx rubriventer'' ( Koefoed, 1953) References Stephanoberyciformes {{Stephanoberyciformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poromitra
''Poromitra'' is a genus of ridgeheads. The 22 known species of Poromitra have been divided into five species groups according to variation in preopercle anatomy. A Poromitra curilensis specimen from the Shirshov Institute of Oceanology, obtained on October 7, 1968, marks the first discovery of a Poromitra member in the southeastern Pacific Ocean. Species There are currently 21 recognized species in this genus: * ''Poromitra atlantica'' (Norman, 1929) * ''Poromitra capito'' Goode & T. H. Bean, 1883 * ''Poromitra coronata'' ( Gilchrist & von Bonde, 1924) * ''Poromitra crassa'' Parin & Ebeling, 1980 * ''Poromitra crassiceps'' ( Günther, 1878) (Crested bigscale) * ''Poromitra cristiceps'' ( C. H. Gilbert, 1890) * ''Poromitra curilensis'' Kotlyar, 2008 * ''Poromitra decipiens'' Kotlyar, 2008 * ''Poromitra frontosa'' (Garman, 1899) * ''Poromitra gibbsi'' Parin & Borodulina, 1989 * ''Poromitra glochidiata'' Kotlyar, 2008 * ''Poromitra indooceanica'' Kotlyar, 2008 * ''Poromitra j ... [...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] |
