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Weever
Weevers (or weeverfish) are nine extant species of ray-finned fishes of the family Trachinidae in the order Perciformes, part of the wider clade Percomorpha. They are long (up to 37 cm), mainly brown in color, and have venomous spines on their first dorsal fin and gills. During the day, weevers bury themselves in sand, just showing their eyes, and snatch prey as it comes past, which consists of shrimp and small fish. Weevers are unusual in not having swim bladders, as have most bony fish, and as a result sink as soon as they stop actively swimming. With the exception of '' T. cornutus'' from the southeast Pacific, all species in this family are restricted to the eastern Atlantic (including the Mediterranean). An extinct relative, '' Callipteryx'', is known from the Monte Bolca lagerstätte of the Lutetian epoch. Weevers are sometimes used as an ingredient in the recipe for ''bouillabaisse''. Weevers are sometimes erroneously called 'weaver fish', although the word is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lesser Weever
The lesser weever (''Echiichthys vipera'') is a venomous weever of the family Trachinidae, in the order Perciformes, and the class Actinopterygii. It is generally found on the sandy sea beds of the open sea, near the shore. Lesser weevers may sting swimmers badly if disturbed in the water, and fishermen when they clean their fishing nets. The lesser weever grows up to 18 cm long, but generally less than 15 cm, with an elongated body. Its color can be described as greyish-brown on the back and silvery-white on the sides. It has no spines in front of its eyes. Habitat Lesser weever fish occur in the eastern Atlantic from the North Sea around the British Isles to Morocco and Madeira, and in the Mediterranean. It is typically found resting on the bottom, partially buried with its eyes and tip of the first dorsal fin exposed. Biology The lesser weever is littoral and benthic, living on sandy, muddy bottoms, ranging from a few meters deep to 150 m (in winter). Resting o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echiichthys
The lesser weever (''Echiichthys vipera'') is a venomous weever of the family Trachinidae, in the order Perciformes, and the class Actinopterygii. It is generally found on the sandy sea beds of the open sea, near the shore. Lesser weevers may sting swimmers badly if disturbed in the water, and fishermen when they clean their fishing nets. The lesser weever grows up to 18 cm long, but generally less than 15 cm, with an elongated body. Its color can be described as greyish-brown on the back and silvery-white on the sides. It has no spines in front of its eyes. Habitat Lesser weever fish occur in the eastern Atlantic from the North Sea around the British Isles to Morocco and Madeira, and in the Mediterranean. It is typically found resting on the bottom, partially buried with its eyes and tip of the first dorsal fin exposed. Biology The lesser weever is littoral and benthic, living on sandy, muddy bottoms, ranging from a few meters deep to 150 m (in winter). Resting on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachinus
''Trachinus'' is a genus of weevers, order Perciformes that consists of seven extant species. Six of the genus representatives inhabit the waters of Eastern Atlantic Ocean, but only one, ''Trachinus cornutus'', inhabits the South-Eastern Pacific Ocean. Three of the Atlantic species occur near the coasts of Europe. An eighth extinct species, ''Trachinus minutus, T. minutus'', is known from Oligocene-aged strata from the Carpathian Mountains, while a ninth species, also extinct, ''Trachinus dracunculus, T. dracunculus'', is known from middle-Miocene-aged strata from Piemonte, Italy. The genus name, given by Carl Linnaeus, Linnaeus, is from ', the Medieval Latin name for the fish, which in turn is from the Ancient Greek wikt:τραχύς, τρᾱχύς ''trachýs'' ‘rough’.Entry ‘Trachinidae’. Webster’s ''Third Unabridged Dictionary'' Species *Spotted weever, ''Trachinus araneus'' Georges Cuvier, Cuvier, 1829. *Guinean weever, ''Trachinus armatus'' Pieter Bleeker, Bleeker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trachinus Cornutus
''Trachinus cornutus'' is a species of weeverfish. Unlike all other extent weevers, which are found in the Eastern Atlantic and Mediterranean Sea, ''T. cornutus'' is widespread in the southeastern Pacific along the coasts of Chile, it is a marine subtropical demersal fish Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone).Walrond Carl . "Coastal fish - Fish of the open sea floor"Te Ara - the Encyclopedia of New Zealand. Updated 2 March 2009 They oc .... References ''Trachinus cornutus'' at FishBase Trachinus Fish of the Pacific Ocean Western South American coastal fauna Fish described in 1848 Endemic fauna of Chile {{trachiniformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callipteryx
''Callipteryx'' is an extinct genus of prehistoric marine percomorph fish that lived during the early Eocene. It is the only known member of the extinct family Callipterygidae. It contains a single species, ''C. speciosus'' (=''C. recticaudus''), known from the famous Monte Bolca site of Italy. It was initially thought to have been a relative of weeverfishes. However, a more recent analysis suggests that it cannot be classified within any of the known percomorph groups. See also * Prehistoric fish * List of prehistoric bony fish This list of prehistoric bony fish is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms. The list includ ... References Prehistoric percomorph genera Eocene fish of Europe Ypresian genera Fossils of Italy Taxa named by Louis Agassiz Fossil taxa described in 1838 {{paleo-rayfinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perciformes
Perciformes (), also called the Acanthopteri, is an order or superorder of ray-finned fish in the clade Percomorpha. ''Perciformes'' means " perch-like". Among the well-known members of this group are perches and darters ( Percidae), and also sea basses and groupers (Serranidae). This order contains many familiar freshwater temperate and tropical marine fish groups, but also extremophiles that have successfully colonized both the North and South Poles, as well as the deepest depths of the ocean. Taxonomy Formerly, this group was thought to be even more diverse than it is thought to be now, containing about 41% of all bony fish (about 10,000 species) and about 160 families, which is the most of any order within the vertebrates. However, many of these other families have since been reclassified within their own orders within the clade Percomorpha, significantly reducing the size of the group. In contrast to this splitting, other groups formerly considered distinct, such as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Percomorpha
Percomorpha () is an extremely large and diverse clade of ray-finned fish. With more than 17,000 known species (including Scombroidei, tuna, Syngnathiformes, seahorses, gobies, Cichlidae, cichlids, flatfish, Labridae, wrasse, Perciformes, perches, Lophiiformes, anglerfish, and Tetraodontiformes, pufferfish) known from both marine and freshwater ecosystems, it is the most speciose clade of extant Vertebrate, vertebrates. Evolution Percomorpha are the most biodiversity, diverse group of teleost fish today. Teleosts, and percomorphs in particular, thrived during the Cenozoic Era (geology), era. Fossil evidence shows that there was a major increase in size and abundance of teleosts immediately after the mass extinction event at the Cretaceous–Paleogene extinction event, Cretaceous-Paleogene boundary ago. The oldest known percomorph fossils are of the early Tetraodontiformes, tetraodontiforms ''Protriacanthus'' and Cretatriacanthidae from the Santonian to Campanian of Italy and Slov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viperfish
A viperfish is any species of marine fish in the genus ''Chauliodus''. Viperfish are mostly found in the mesopelagic zone and are characterized by long, needle-like teeth and hinged lower jaws. A typical viperfish grows to lengths of . Viperfishes undergo diel vertical migration and are found all around the world in tropical and temperate oceans. Viperfishes are capable of bioluminescence and possess photophores along the ventral side of their body, likely used to camouflage them by blending in with the less than 1% of light that reaches to below 200 meters depth. Habitat Viperfish live in meso- and bathypelagic environments and have been found dominating submarine calderas such as the Kurose Hole, which is the site with the highest ''Chauliodus'' density known in the world. Viperfish also engage in diel vertical migration, meaning they migrate up into more productive waters during the night to feed. However, it is likely that only part of the total population of viperfish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bouillabaisse
Bouillabaisse ( , , ; ) is a traditional Cuisine of Provence, Provençal fish soup originating in the port city of Marseille. The word is originally a compound of the two Provençal verbs ('to boiling, boil') and ('to reduce heat', i.e. 'simmer'). Bouillabaisse was originally a dish made by Marseille fishermen, using bony rockfish, which they were unable to sell to restaurants or markets. There are at least three kinds of fish in a traditional bouillabaisse: typically red rascasse (''Scorpaena scrofa''); sea robin; and European conger. It can also include gilt-head bream, turbot, monkfish, flathead grey mullet, mullet, or European hake. It usually also includes shellfish and other seafood such as Sea urchin as food, sea urchins, Mussel#As food, mussels, velvet crabs, spider crab, spider crabs, or Octopus as food, octopus. More expensive versions may add langoustine (Dublin Bay prawn; Norway lobster), though this was not part of the traditional dish made by Marseille fisherme ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lutetian
The Lutetian is, in the geologic timescale, a stage (stratigraphy), stage or age (geology), age in the Eocene. It spans the time between . The Lutetian is preceded by the Ypresian and is followed by the Bartonian. Together with the Bartonian it is sometimes referred to as the Middle Eocene Subepoch. Stratigraphic definition The Lutetian was named after Lutetia, the Latin language, Latin name for the city of Paris. The Lutetian Stage was introduced in scientific literature by French geologist Albert de Lapparent in 1883 and revised by A. Blondeau in 1981. The base of the Lutetian Stage is at the first appearance of the nanofossil ''Blackites inflatus'', according to an official reference profile (GSSP) established in 2011. Of two candidates located in Spain, the Gorrondatxe section was chosen.See thwebsite of Eustoquio Molinafor these candidates. The top of the Lutetian (the base of the Bartonian) is at the first appearance of calcareous nannofossils, calcareous nanoplankton s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
