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Synbranchidae
The swamp eels (also written "swamp-eels") are a family (Synbranchidae) of freshwater eel-like fishes of the tropics and subtropics. Most species are able to breathe air and typically live in marshes, ponds and damp places, sometimes burying themselves in the mud if the water source dries up. They have various adaptations to suit this lifestyle; they are long and slender, they lack pectoral and pelvic fins, and their dorsal and anal fins are vestigial, making them limbless vertebrates. They lack scales and a swimbladder, and their gills open on the throat in a slit or pore. Oxygen can be absorbed through the lining of the mouth and pharynx, which is rich in blood vessels and acts as a "lung". Although adult swamp eels have virtually no fins, the larvae have large pectoral fins which they use to fan water over their bodies, thus ensuring gas exchange before their adult breathing apparatus develops. When about a fortnight old they shed these fins and assume the adult form. Most spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cavefish
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish and hypogean fish.Romero, Aldemaro, editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Helfman, G.S. (2007). ''Fish Conservation: A Guide to Understanding and Restoring Global Aquatic Biodiversity and Fishery Resources'', pp. 41–42. Island Press. There are more than 200 scientifically described species of obligate cavefish found on all continents, except Antarctica. Although widespread as a group, many cavefish species have very small ranges and are seriously threatened.Fenolio, D.B.; Zhao, Y.; Niemiller, M.L.; and Stout, J. (2013). ''In-situ observations of seven enigmatic cave loaches and one cave barbel from Guangxi, China, with notes on conservation status.'' Speleobiology Notes 5: 19-33.Proud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monopterus
''Monopterus'' is a genus of swamp eels native to Asia. They live in various freshwater habitats and some have a fossorial lifestyle.Britz, R., Doherty-Bone, T.M., Kouete, M.T., Sykes, D. & Gower, D.J. (2016)''Monopterus luticolus'', a new species of swamp eel from Cameroon (Teleostei: Synbranchidae). ''Ichthyological Exploration of Freshwaters, 27 (4): 309-323.'' Species Four recognized species are placed in this genus: * ''Monopterus albus, M. albus'' (Vasily Fyodorovich Zuyev, Zuiew, 1793) (Asian swamp eel) * ''M. bicolor'' Nguyễn Hữu Dực, H. D. Nguyễn & Nguyễn Văn Hảo, V. H. Nguyễn, 2005 * ''M. dienbienensis'' V. H. Nguyễn & H. D. Nguyễn, 2005 * ''M. javanensis'' Bernard Germain Étienne de La Ville-sur-Illon, comte de Lacépède, Lacépède, 1800 Six species from South Asia (''M. cuchia'', ''Ophichthys desilvai, M. desilvai'', ''M. hodgarti'', ''M. fossorius'', ''M. ichthyophoides'', and ''Ophichthys indicus, M. indicus'') have been reclassified to the ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monopterus Indicus
The Bombay swamp eel (''Ophichthys indicus''), also known as the paytop in Marathi, is a species of fish in the family Synbranchidae. It is endemic to the state of Maharashtra in India. Taxonomy It was at first classified in the genus ''Amphipnous'', but it was later moved to ''Monopterus''. However a 2020 study found it to form a distinct clade with about 4 other species also previously classified in ''Monopterus'', and the genus ''Ophichthys'' was thus revived to contain them. Distribution This species is thought to be endemic to the northern Western Ghats of India, in the state of Maharashtra. It is currently known from 5-10 localities: Robber's Cave and Dhobi Falls in Mahabaleshwar, Kanheri Falls near Kanheri Caves in Mumbai, and the Tamhini and Tail Baila areas in Pune. However, it is thought to occur in other localities as well. Habitat The species inhabits swamps and marshy areas associated with hill streams. During the early part of the monsoon season, adult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophisternon
''Ophisternon'' is a genus of swamp eels found in fresh and brackish waters in South and Southeast Asia, New Guinea, Australia, Middle America and West Africa. Two species are blind cave-dwellers.Romero, A., editor (2001). ''The Biology of Hypogean Fishes.'' Developments in Environmental Biology of Fishes. Species There are currently six recognized species in this genus: * '' Ophisternon aenigmaticum'' D. E. Rosen & Greenwood, 1976 (Obscure swamp eel) * ''Ophisternon afrum'' ( Boulenger, 1909) (Guinea swamp eel) * ''Ophisternon bengalense'' McClelland, 1844 (Bengal eel) * ''Ophisternon candidum'' ( Mees, 1962) (Blind cave eel) * ''Ophisternon gutturale'' ( J. Richardson, 1845) (Australian swamp eel) * ''Ophisternon infernale The blind swamp eel (''Ophisternon infernale'') is a species of fish in the family Synbranchidae. It is endemic to Mexico where it lives in cave systems and is known in Spanish as the '. The International Union for Conservation of Nature has rat ... ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synbranchus
''Synbranchus'' is a genus of swamp eels native to Central and South America. Species There are currently three recognized species in this genus: * '' Synbranchus lampreia'' Favorito, Zanata & Assumpção, 2005 * '' Synbranchus madeirae'' D. E. Rosen & Rumney, 1972 * ''Synbranchus marmoratus'' Bloch Bloch is a surname of German origin. Notable people with this surname include: A–F * (1859-1914), French rabbi *Adele Bloch-Bauer (1881-1925), Austrian entrepreneur *Albert Bloch (1882–1961), American painter * (born 1972), German motor journal ..., 1795 (Marbled swamp eel) References External links * * Synbranchidae {{synbranchiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rakthamichthys
''Rakthamichthys'' is a genus of swamp eels that are endemic to India. Three species are known from the Western Ghats and one is known from Northeast India. All species live underground, with one species (''R. rongsaw'') having a fossorial lifestyle and three species (''R. digressus'', ''R. roseni'', and ''R. indicus'') being troglobitic in nature. All species display adaptations to this lifestyle, including a bright red coloration and highly reduced eyes. Taxonomy All four species were formerly classified in the genus ''Monopterus'' until a 2020 study found significant genetic and osteological differences between them and the rest of ''Monopterus'', including unique and highly divergent characteristics in the gill arch skeleton. This led to the species being classified in a new genus ''Rakthamichthys'', with "raktham" meaning "blood-red" in Malayalam, as a reference to their distinctive coloration. Species * ''Rakthamichthys digressus'' (K. C. Gopi, 2002) (blind eel) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macrotrema
''Macrotrema caligans'' is a species of swamp eel native to Peninsular Malaysia and the Mae Nam Chao Praya basin in Thailand. The male guards a nest in a burrow. This species is the only known member of its genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com .... References Synbranchidae Monotypic fish genera Fish described in 1849 {{synbranchiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synbranchus Marmoratus
''Synbranchus marmoratus'', the marbled swamp eel, neotropical swamp eel, marmorated swamp eel, mottled swamp eel, zange, or muçum is a species of swamp eel native to Central and South America, including the island of Trinidad and Grenada . Description The marbled swamp eel has an elongated cylindrical body and can grow to a maximum length of about , although a more normal adult length is . The dorsal and anal fins are vestigial and the paired pectoral and pelvic fins are missing altogether. The lining of the mouth is rich in blood vessels and provides an additional surface for gas exchange when the swamp eel breathes air. Ecology When in water, the marbled swamp eel is able to use its fully functional gills to breathe, whereas on land it can breathe with the lining of the mouth and pharynx. It is a nocturnal predator and feeds on any small prey in its environment such as frogs, tadpoles,https://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/documents/ogatt/Synb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marbled Swamp Eel
''Synbranchus marmoratus'', the marbled swamp eel, neotropical swamp eel, marmorated swamp eel, mottled swamp eel, zange, or muçum is a species of swamp eel native to Central and South America, including the island of Trinidad and Grenada . Description The marbled swamp eel has an elongated cylindrical body and can grow to a maximum length of about , although a more normal adult length is . The dorsal and anal fins are vestigial and the paired pectoral and pelvic fins are missing altogether. The lining of the mouth is rich in blood vessels and provides an additional surface for gas exchange when the swamp eel breathes air. Ecology When in water, the marbled swamp eel is able to use its fully functional gills to breathe, whereas on land it can breathe with the lining of the mouth and pharynx. It is a nocturnal predator and feeds on any small prey in its environment such as frogs, tadpoles,https://sta.uwi.edu/fst/lifesciences/sites/default/files/lifesciences/documents/ogatt/Syn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectoral Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pelvic Fin
Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. Structure and function Structure In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays (lepidotrichia) are positioned distally from the radials. There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body. Pelvic fin structures can be extremely specialized in actinopterygians. Gobiids and lumpsuckers modify their pelvic fins into a sucker disk that allow them to adhere to the substrate or climb structures, such as waterfalls. In priapiumfish, males have modified their pelvic structures into a spiny copulatory device that grasps the female during mating. File:Pelvic fin skeleton.png, Pelvic fin skeleton for ''Danio rerio'', zebrafish. File:Zuignap waarmee de zwartbekgrond ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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