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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] |
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] |
Rakthamichthys Roseni
''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] |
Rakthamichthys Mumba
''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] |
Rakthamichthys Digressus
''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] |
Monopterus Eapeni
The Malabar swamp eel (''Rakthamichthys indicus'') (not to be confused with ''Ophichthys fossorius'', also known as the Malabar swampeel) is a species of troglobitic swamp eel endemic to subterranean springs in Kottayam in the Indian state of Kerala. Taxonomy It was originally described as ''Monopterus indicus'' by K. C. Eapen in 1963, but another fish with the same scientific name, the Bombay swamp eel (formerly also ''Monopterus indicus'', now ''Ophichthys indicus'') had already been described 2 years prior. Due to this causing a homonym the species had to be renamed but due to the lack of specimens, it was tentatively referred to as ''Monopterus'' "''indicus''". It was later redescribed as ''Monopterus eapeni'' in 1991. A 2020 study found ''M. eapeni'' to form a clade with two other troglobitic species from the Western Ghats and one fossorial species from Northeast India, leading it to be reclassified in the new genus ''Rakthamichthys'', lifting the homonym problem and allo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rakthamichthys Indicus
The Malabar swamp eel (''Rakthamichthys indicus'') (not to be confused with ''Ophichthys fossorius'', also known as the Malabar swampeel) is a species of troglobitic swamp eel endemic to subterranean springs in Kottayam in the Indian state of Kerala. Taxonomy It was originally described as ''Monopterus indicus'' by K. C. Eapen in 1963, but another fish with the same scientific name, the Bombay swamp eel (formerly also ''Monopterus indicus'', now ''Ophichthys indicus'') had already been described 2 years prior. Due to this causing a homonym the species had to be renamed but due to the lack of specimens, it was tentatively referred to as ''Monopterus'' "''indicus''". It was later redescribed as ''Monopterus eapeni'' in 1991. A 2020 study found ''M. eapeni'' to form a clade with two other troglobitic species from the Western Ghats and one fossorial species from Northeast India, leading it to be reclassified in the new genus ''Rakthamichthys'', lifting the homonym problem and allow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swamp Eel
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] |
Cave Fish
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] |
Rakthamichthys Rongsaw
''Rakthamichthys rongsaw'' is a species of swamp eel discovered in the Khasi Hills in northeast India. The researchers were searching for caecilians, when they uncovered the eel in soil. Taxonomy It was formerly classified in the genus ''Monopterus'' until a 2020 study found it to group with three other subterranean ''Monopterus'' species from the Western Ghats, all of which displayed significant genetic and osteological differences from any other species in ''Monopterus''. Due to this, all species were classified in the new genus ''Rakthamichthys''. Description Only one eel has been identified to date, the specimen was approximately long. The eel is also absent from skin pigmentation and has 92 precaudal and 69 caudal vertebra The spinal column, a defining synapomorphy shared by nearly all vertebrates,Hagfish are believed to have secondarily lost their spinal column is a moderately flexible series of vertebrae (singular vertebra), each constituting a characteristic i . ... [...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 Roseni
''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: * '' M. albus'' ( Zuiew, 1793) (Asian swamp eel) * ''M. bicolor'' H. D. Nguyễn & V. H. Nguyễn, 2005 * ''M. dienbienensis'' V. H. Nguyễn & H. D. Nguyễn, 2005 * ''M. javanensis'' Lacépède, 1800 Six species from South Asia (''M. cuchia'', '' M. desilvai'', ''M. hodgarti'', ''M. fossorius'', ''M. ichthyophoides'', and '' M. indicus'') have been reclassified to the genus ''Ophichthys''. Four fossorial or subterranean species (''M. digressus'', '' M. eapeni'', '' M. rongsaw'', and ''M. roseni'') from India have been reclassified to the genus ''Rakthamicht ... [...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] |
