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Gonorynchiform
The Gonorynchiformes are an order of ray-finned fish that includes the important food source, the milkfish (''Chanos chanos'', family Chanidae), and a number of lesser-known types, both marine and freshwater. The alternate spelling "Gonorhynchiformes", with an "h", is frequently seen but not official. Gonorynchiformes have small mouths and no teeth. They are the sole group in the clade Anotophysi, a subgroup of the superorder Ostariophysi. They are characterized by a primitive Weberian apparatus formed by the first three vertebrae and one or more cephalic ribs within the head. This apparatus is believed to be a hearing organ, and is found in a more advanced and complex form in the related cypriniform fish, such as carp. Also like the cypriniforms, the gonorynchiforms produce a substance from their skin when injured that dissolves into the water and acts an alarm signal to other fish. Taxonomy Although many of the families are rather small, there are several fossil genera. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kneria
''Kneria'' is a genus of small fish in the family Kneriidae. All 13 species in this genus are restricted to Africa. Named in honor of Austrian ichthyologist Rudolf Kner (1810-1869) Species FishBase lists 13 species: * '' Kneria angolensis'' Steindachner, 1866 * '' Kneria ansorgii'' ( Boulenger, 1910) * '' Kneria auriculata'' ( Pellegrin, 1905) (Airbreathing shellear) * '' Kneria katangae'' Poll, 1976 * '' Kneria maydelli'' Ladiges & Voelker, 1961 (Cunene kneria) * '' Kneria paucisquamata'' Poll & D. J. Stewart, 1975 * '' Kneria polli'' Trewavas, 1936 (Western shellear) * '' Kneria ruaha'' Seegers, 1995 * '' Kneria rukwaensis'' Seegers, 1995 * '' Kneria sjolandersi'' Poll, 1967 * '' Kneria stappersii'' Boulenger, 1915 * '' Kneria uluguru'' Seegers, 1995 * '' Kneria wittei'' Poll, 1944 However there is another species, known as the Southern Kneria (''Kneria'' sp. 'South Africa'), occurring only in the headwaters of a few tributaries of the Crocodile River, in the Inkoma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gonorynchus
''Gonorynchus'' is a genus of long thin gonorynchiform ray-finned fish, commonly called beaked salmon or beaked sandfish that live on sandy bottoms near shorelines. There are five known extant species which are placed in this genus. All have a distinctive angular snout (hence the name) that the fish use to dig themselves into the sand. The most widespread species is '' Gonorynchus gonorynchus'', found in scattered locations worldwide. It can reach up to in length. It is a nocturnal fish, feeding on invertebrates at night and burrowing into sand or mud during the day. Beaked salmon are fished commercially in some areas. The flesh of ''Gonorynchus greyi'', found around Australia and New Zealand, is reported to be "firm and of good flavour". Species * ''Gonorynchus abbreviatus'' Temminck & Schlegel, 1846 * ''Gonorynchus forsteri'' J. D. Ogilby, 1911 * '' Gonorynchus gonorynchus'' (Linnaeus, 1766) * ''Gonorynchus greyi'' ( J. Richardson, 1845) * ''Gonorynchus moseleyi ''G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of the entire Phanerozoic. The name is derived from the Latin ''creta'', " chalk", which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation ''Kreide''. The Cretaceous was a period with a relatively warm climate, resulting in high eustatic sea levels that created numerous shallow inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was ice free, and forests extended to the poles. During this time, new groups of mammals and birds appeared. During the Early Cretaceous, flowering plants appeared and began to rapidly diversify, becoming the dominant group of plants across the Ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cypriniformes
Cypriniformes is an order of ray-finned fish, including the carps, minnows, loaches, and relatives. Cypriniformes is an Order within the Superorder Ostariophysi consisting of "Carp-like" Ostariophysins. This order contains 11-12 families, although some authorities have designated as many as 23, over 400 genera, and more than 4,250 species, with new species being described every few months or so, and new genera being recognized frequently.Eschmeyer, W.N., Fong, J.D. (2015Species by family/subfamilyin the Catalog of Fishes, California Academy of Sciences (retrieved 2 July 2015) They are most diverse in southeastern Asia, and are entirely absent from Australia and South America.Nelson (2006) At 112 years old, the longest-lived cypriniform fish documented is the bigmouth buffalo. Their closest living relatives are the Characiformes ( characins and allies), the Gymnotiformes ( electric eel and American knifefishes), and the Siluriformes (catfishes). Description Like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chanopsis
''Chanopsis'' is an extinct genus of prehistoric bony fish that lived during the Aptian stage of the Early Cretaceous epoch. See also *Prehistoric fish *List of prehistoric bony fish A ''list'' is any set of items in a row. List or lists may also refer to: People * List (surname) Organizations * List College Albert A. List College of Jewish Studies, known simply as List College, is the undergraduate school of the J ... References Early Cretaceous fish Cretaceous bony fish Prehistoric bony fish genera {{Cretaceous-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grasseichthys
''Grasseichthys gabonensis'' is an extremely small (around 2 cm) fish native to the Ivindo and Central Congo basins of Africa Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area .... It is the only member of its genus. References Endemic fauna of Gabon Kneriidae Taxa named by Jacques Géry Fish of Africa Monotypic freshwater fish genera {{Gonorynchiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cromeria
''Cromeria'' is a small genus of fish in the family Kneriidae found in fresh waters in the Sudan, Mali, and Guinea in the Nile and Niger Rivers of Africa. These reach a length of up to 4.4 cm. The currently recognized species are:Moritz, T., R. Britz and K.E. Linsenmair 2006. ''Cromeria nilotica and C. occidentalis, two valid species of the African freshwater fish family Kneriidae'' (Teleostei: Gonorhynchiformes). *'' Cromeria nilotica'' Boulenger, 1901 (naked shellear) *'' Cromeria occidentalis'' Daget Jacques Daget (30 June 1919, Vineuil – 29 June 2009), was a French ichthyologist. He was a professor at the National Museum of Natural History, in Paris. Several marine species have been named after him. Species named after him Species named ..., 1954 References *Eschmeyer, William N., ed. (1998). ''Catalog of Fishes Special Publication of the Center for Biodiversity Research and Information'', no. 1, vol 1–3. p. 2905. California Academy of Sciences: San F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parakneria
''Parakneria'' is a genus of fish in the family Kneriidae, with 14 species, all of which are restricted to Africa. Species There are 14 species: * ''Parakneria abbreviata'' ( Pellegrin, 1931) * ''Parakneria cameronensis'' (Boulenger, 1909) * ''Parakneria damasi'' Poll, 1965 * ''Parakneria fortuita'' M. J. Penrith, 1973 (Cubango kneria) * ''Parakneria kissi'' Poll, 1969 * ''Parakneria ladigesi'' Poll, 1967 * ''Parakneria lufirae'' Poll, 1965 * ''Parakneria malaissei'' Poll, 1969 * ''Parakneria marmorata'' (Norman, 1923) * ''Parakneria mossambica'' R. A. Jubb & Bell-Cross, 1974 (Gorongoza kneria) * ''Parakneria spekii'' ( Günther, 1868) * ''Parakneria tanzaniae'' Poll, 1984 * ''Parakneria thysi'' Poll, 1965 * ''Parakneria vilhenae ''Parakneria'' is a genus of fish in the family Kneriidae, with 14 species, all of which are restricted to Africa. Species There are 14 species: * '' Parakneria abbreviata'' ( Pellegrin, 1931) * '' Parakneria cameronensis'' (Boulenger, 1909) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
