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Silurus Tomodai
''Silurus tomodai'' is a species of catfish found in Japan. This species reaches a length of . Etymology The fish is named in honor of Tomoda Katsuzo, a Japanese ichthyologist who contributed to the study of catfishes in Japan and who described ''Silurus biwaensis ''Silurus biwaensis'', the giant Lake Biwa catfish or ''Biwako-o'namazu'' (ビワコオオナマズ (Japan)), is a large predatory catfish species endemic to Lake Biwa in Japan. Description The giant Lake Biwa catfish is very similar to wels cat ...'' and '' Silurus lithophilus'' in 1961. References tomodai Fish described in 2018 Taxa named by Yusuke Hibino Taxa named by Ryoichi Tabata {{catfish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, ''Vandellia cirrhosa''. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus ''Corydoras'', are important in the aquarium hobby. Many catfish are nocturnal, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurus Biwaensis
''Silurus biwaensis'', the giant Lake Biwa catfish or ''Biwako-o'namazu'' (ビワコオオナマズ (Japan)), is a large predatory catfish species endemic to Lake Biwa in Japan. Description The giant Lake Biwa catfish is very similar to wels catfish, which it is closely related to. It has an elongated cylindrical body and can reach up to in length and weigh as much as . The top of the body is dark grey to black in colour while the underside is a pale, whitish colour. Lifecycle They prey on fish and frogs which live in the lake. ''S. biwaensis'' is the largest predatory fish in Lake Biwa. Using telemetry methods researchers tried to explain the migratory behavior of the species. It was found that the fish are more or less site-faithful and mostly stay close to their spawning grounds. Other studies have shown that the sub-populations of the lake hardly mix. Relationship to humans Some fishermen believe that the catfish change their behavior and become very active when an earthqua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurus Lithophilus
''Silurus'' is a genus of catfishes native to Europe and Asia. Species There are currently 20 recognized species in this genus: * ''Silurus aristotelis'' Garman, 1890 (Aristotle's catfish) * ''Silurus asotus'' Linnaeus, 1758 (Amur catfish) * ''Silurus biwaensis'' Tomoda, 1961 (Lake Biwa giant catfish) * ''Silurus burmanensis'' Thant, 1967 * ''Silurus caobangensis'' V. H. Nguyễn, T. H. N. Vũ & T. D. P. Nguyễn, 2015 (Yellow catfish) * ''Silurus chantrei'' Sauvage, 1882 * ''Silurus dakrongensis'' V. H. Nguyễn, T. H. N. Vũ & T. D. P. Nguyễn, 2015 (Dakrong catfish) * ''Silurus duanensis'' X. Y. Hu, J. H. Lan & C. G. Zhang, 2004 * ''Silurus glanis'' Linnaeus, 1758 (Wels catfish) * ''Silurus grahami'' Regan, 1907 * ''Silurus langsonensis'' V. H. Nguyễn, T. H. N. Vũ & T. D. P. Nguyễn, 2015 (Flower catfish) * ''Silurus lanzhouensis'' H. L. Chen, 1977 (Lanzhou catfish) * ''Silurus lithophilus'' Tomoda, 1961 (Rock catfish) * ''Silurus longibarbatus'' Li, L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silurus
''Silurus'' is a genus of catfishes native to Europe and Asia. Species There are currently 20 recognized species in this genus: * ''Silurus aristotelis'' Garman, 1890 (Aristotle's catfish) * ''Silurus asotus'' Linnaeus, 1758 (Amur catfish) * ''Silurus biwaensis'' Tomoda, 1961 (Lake Biwa giant catfish) * ''Silurus burmanensis'' Thant, 1967 * ''Silurus caobangensis'' V. H. Nguyễn, T. H. N. Vũ & T. D. P. Nguyễn, 2015 (Yellow catfish) * ''Silurus chantrei'' Sauvage, 1882 * ''Silurus dakrongensis'' V. H. Nguyễn, T. H. N. Vũ & T. D. P. Nguyễn, 2015 (Dakrong catfish) * ''Silurus duanensis'' X. Y. Hu, J. H. Lan & C. G. Zhang, 2004 * ''Silurus glanis'' Linnaeus, 1758 (Wels catfish) * ''Silurus grahami'' Regan, 1907 * ''Silurus langsonensis'' V. H. Nguyễn, T. H. N. Vũ & T. D. P. Nguyễn, 2015 (Flower catfish) * ''Silurus lanzhouensis'' H. L. Chen, 1977 (Lanzhou catfish) * ''Silurus lithophilus'' Tomoda, 1961 (Rock catfish) * ''Silurus longibarbatus'' Li, L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 2018
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. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Yusuke Hibino
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 th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
