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Bagrichthys
''Bagrichthys'' is a genus of bagrid catfishes. Taxonomy This genus is most closely related to the genus '' Bagroides''. In turn, these two genera are most closely related to ''Leiocassis''. The genus can be split into two lineages. ''B. hypselopterus'', ''B. macracanthus'', ''B. majusculus'', and ''B. vaillantii'' have long dorsal fins with 18 or more serrations in adults, while ''B. macropterus'', ''B. micranodus'', and ''B. obscurus'' have short dorsal fins with 15 or fewer serrations in adults. The first lineage is more derived, while the second lineage is more basal. Species This genus currently contains seven described species: * '' Bagrichthys hypselopterus'' (Bleeker, 1852) * '' Bagrichthys macracanthus'' (Bleeker, 1854) (Black lancer, Black lancer catfish) * '' Bagrichthys macropterus'' (Bleeker, 1854) (False black lancer, False black lancer catfish) * '' Bagrichthys majusculus'' H. H. Ng, 2002 * '' Bagrichthys micranodus'' T. R. Roberts, 1989 * '' Bagrichthys obscu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrichthys Macracanthus
The black lancer (''Bagrichthys macracanthus'') is a species of bagrid catfish found in Cambodia, Indonesia, Laos, Malaysia and Thailand. It grows to a length of 25.0 cm. It is the only species of the genus ''Bagrichthys'' that is traded for the aquarium An aquarium (plural: ''aquariums'' or ''aquaria'') is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aq ... hobby. When these fish are first imported, they are often young and in bad condition. It has been recommended to acclimate these fish at a high temperature (about 29 °C or 85 °F). Though nocturnal, this species may be trained to eat in the light; it may even be trained to feed from the owner's hand. These fish tend to be territorial among their own kinds though this behavior can be reduced by placing a male with multiple females. This species is quite adaptable wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrichthys Macropterus
''Bagrichthys macropterus'', the false black lancer, is a species of bagrid catfish found in Cambodia, China, Indonesia, Laos, Malaysia, Thailand and Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making i .... It grows to a length of 30.0 cm and is commercially fished for human consumption. References * Bagridae Fish of Asia Freshwater fish of China Freshwater fish of Indonesia Freshwater fish of Malaysia Fish of Thailand Fish described in 1854 {{bagridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrichthys Hypselopterus
''Bagrichthys hypselopterus'' is a species of bagrid catfish found in Thailand, Indonesia and Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r .... This species reaches a length of 40.0 cm and is commercially fished for human consumption. References * Bagridae Fish of Asia Fish of Thailand Freshwater fish of Malaysia Freshwater fish of Indonesia Fish described in 1852 {{bagridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrichthys Vaillantii
''Bagrichthys vaillantii'' is one of species of bagrid catfish in the genus ''Bagrichthys''. This fish is endemic to Indonesia where it is found in the Mahakam River basin in eastern Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and eas .... The fish is named in honor of Léon Vaillant (1834-1914) of the Muséum national d’Histoire naturelle in Paris. He described this species in 1902 but had used a preoccupied name so it had to be renamed. References * Bagridae Fish of Asia Freshwater fish of Indonesia Fish described in 1906 Taxa named by Canna Maria Louise Popta {{bagridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrichthys Majusculus
''Bagrichthys majusculus'' is one of seven species of bagrid catfish in the genus ''Bagrichthys''. It is endemic to Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is bo .... References * Bagridae Endemic fauna of Thailand Fish of Thailand Fish described in 2002 {{bagridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrichthys Obscurus
''Bagrichthys obscurus'' is a species of bagrid catfish which is found in Cambodia, Laos, Thailand and Vietnam where it is found in the Chao Phraya, Bang Pakong and Mekong The Mekong or Mekong River is a trans-boundary river in East Asia and Southeast Asia. It is the world's List of rivers by length, twelfth longest river and List of longest rivers of Asia, the third longest in Asia. Its estimated length is , ... drainages. It grows to a length of 24.9 cm. References * Bagridae Fish of Asia Fish of Thailand Fish described in 1999 {{bagridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrichthys Micranodus
''Bagrichthys micranodus'' is a species of bagrid catfish endemic to Indonesia where it is found in western Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and eas .... It grows to a length of 18.5 cm. References * Bagridae Freshwater fish of Asia Freshwater fish of Indonesia Fish described in 1989 {{bagridae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rivomarginella
''Rivomarginella'' is a genus of freshwater snails, gastropod mollusks in the family Marginellidae, the margin snails. ''Rivomarginella'' is the only freshwater genus in the marine family Marginellidae. Distribution They are native to Southeast Asia. Species There are two species in the genus ''Rivomarginella'': * ''Rivomarginella electrum'' (Reeve, 1865) * ''Rivomarginella morrisoni'' Brandt, 1968 - type species of the genus ''Rivomarginella''Bouchet, P.; Gofas, S. (2015). ''Rivomarginella''. In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=465265 on 2016-01-02 Ecology Predators of ''Rivomarginella'' snails include bagrid catfish false black lancer ''Bagrichthys macropterus''.Tan H. H. & Ng H. H. (2000). "The catfishes (Teleostei: Siluriformes) of Sumatra". ''Journal of Natural History The ''Journal of Natural History'' is a scientific journal published by Taylor & Francis focusing on entom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrid Catfish
The Bagridae are a family of catfish that are native to Africa ('' Bagrus'') and Asia (all other genera) from Japan to Borneo. It includes about 245 species. These fish are commonly known as naked catfishes or bagrid catfishes. Many large bagrids are important as a source of food. Some species are also kept as aquarium fishes. Physical characteristics The dorsal fin is preceded by a spine. The adipose fin is present and can have a relatively long base in some species. The pectoral fin spine can be serrated. The body is completely naked (they have no scales). The maximum length is about . Fishes of the family Bagridae have four pairs of well-developed barbels covered by a layer of taste bud-enriched epithelium. Taxonomy The taxonomy of this family has changed rapidly. Nelson (2006) comments how "the family is very different from that recognized in Nelson (1994)". Claroteidae and Austroglanididae contain species that were previously bagrids. Auchenoglanididae is considered by some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chironomidae
The Chironomidae (informally known as chironomids, nonbiting midges, or lake flies) comprise a family of nematoceran flies with a global distribution. They are closely related to the Ceratopogonidae, Simuliidae, and Thaumaleidae. Many species superficially resemble mosquitoes, but they lack the wing scales and elongated mouthparts of the Culicidae. The name Chironomidae stems from the Ancient Greek word ''kheironómos'', "a pantomimist". Common names and biodiversity This is a large taxon of insects; some estimates of the species numbers suggest well over 10,000 world-wide. Males are easily recognized by their plumose antennae. Adults are known by a variety of vague and inconsistent common names, largely by confusion with other insects. For example, chironomids are known as "lake flies" in parts of Canada and Lake Winnebago, Wisconsin, but "bay flies" in the areas near the bay of Green Bay, Wisconsin. They are called "sand flies", "muckleheads", "muffleheads", "Canadian so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gill
A gill () is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment. Branchia (pl. branchiae) is the zoologists' name for gills (from Ancient Greek ). With the exception of some aquatic insects, the filaments and lamellae (folds) contain blood or coelomic fluid, from which gases are exchanged through the thin walls. The blood carries oxygen to other parts of the body. Carbon dioxide passes from the blood through the thin gill tissue into the water. Gills or gill-like organs, located in different parts of the body, are found in various groups of aquatic animals, including mollusks, crustaceans, insects, fish, and amphibians. Semiterrestrial marine animals such as crabs and mudskippers have gill cham ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larva
A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. The larva's appearance is generally very different from the adult form (''e.g.'' caterpillars and butterflies) including different unique structures and organs that do not occur in the adult form. Their diet may also be considerably different. Larvae are frequently adapted to different environments than adults. For example, some larvae such as tadpoles live almost exclusively in aquatic environments, but can live outside water as adult frogs. By living in a distinct environment, larvae may be given shelter from predators and reduce competition for resources with the adult population. Animals in the larval stage will consume food to fuel their transition into the adult form. In some organisms like polychaetes and barnacles, adults are immobil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
