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Rainbowfish
The rainbowfish or Melanotaeniidae is a family of small, colourful freshwater fish found in northern and eastern Australia, New Guinea (including islands in Cenderawasih Bay and Raja Ampat Islands in Indonesia), Sulawesi and Madagascar. The largest rainbowfish genus, ''Melanotaenia'', derives from the ancient Greek ''melano'' (black) and ''taenia'' (banded). Translated, it means "black-banded", and is a reference to the often striking lateral black bands that run along the bodies of those in the genus ''Melanotaenia''. Characteristics The Melanotaeniidae is characterised by having their distal premaxillary teeth enlarged. They have a compressed body with the two dorsal fins being separated but with only a small gap between them. There are 3–7 spines in the first dorsal fin while the second has 6–22 rays, with the first ray being a stout spine in some species, the anal fin has 10–30 rays and, again, the first may be a stout spine in some species. The lateral line is either ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boeseman's Rainbowfish
Boeseman's rainbowfish (''Melanotaenia boesemani''), also known as the Boesemani rainbowfish, is a species of fish in the Family (biology), family Melanotaeniidae. Geographic range ''M. boesemani'' is Endemism, endemic to the Ayamaru Lakes and their tributaries in a mountainous region of the Bird's Head Peninsula, West Papua (region), West Papua, Indonesia. Etymology The Specific name (zoology), specific name, ''boesemani'', is in honour of Dutch ichthyologist Marinus Boeseman, the collector of the Type (biology), type specimens. In captivity ''M. boesemani'' is also available in the aquarium hobby, where it is prized for its excellent colours and peaceful demeanor. The colour pattern is completely different from most other forms of rainbowfish, as it has a half orange-red rear and a bluish-grey or purple front which in some specimens is almost defined perfectly. ''M. boesemani'' will often grow to lengths that exceed if given the right food and water conditions. Like most ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melanotaeniinae
Melanotaeniinae the Australian rainbowfishes is a subfamily of the rainbowfishes of the family Melanotaeniidae. They are a group of small, colourful, freshwater fish found in northern and eastern Australia, New Guinea, islands in Cenderawasih Bay the Raja Ampat Islands in Indonesia and in Madagascar. The largest Australian rainbowfish genus, ''Melanotaenia'', derives from the ancient Greek ''melano'' (black) and ''taenia'' (banded). Translated, it means "black-banded", and is a reference to the often striking lateral black bands that run along the bodies of those in the genus ''Melanotaenia''. Description Australian rainbowfish are usually less than in length, with some species measuring less than , while one species, ''Melanotaenia vanheurni'', reaches lengths of up to . They live in a wide range of freshwater habitats, including rivers, lakes, and swamps. Although they spawn all year round, they lay a particularly large number of eggs at the start of the local rainy season. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilatherina
''Chilatherina'' is a genus of rainbowfishes that is endemic to freshwater in New Guinea. Species There are currently 11 recognized species in this genus: * '' Chilatherina alleni'' Price, 1997 * '' Chilatherina axelrodi'' G. R. Allen, 1979 (Axelrod's rainbowfish) * '' Chilatherina bleheri'' G. R. Allen, 1985 (Bleher's rainbowfish) * '' Chilatherina bulolo'' ( Whitley, 1938) (Bulolo rainbowfish) * '' Chilatherina campsi'' ( Whitley, 1957) (Highlands rainbowfish) * ''Chilatherina crassispinosa'' ( M. C. W. Weber, 1913) (Silver rainbowfish) * ''Chilatherina fasciata'' ( M. C. W. Weber, 1913) (Barred rainbowfish) * ''Chilatherina lorentzii'' ( M. C. W. Weber, 1907) (Lorentz's rainbowfish) * ''Chilatherina pagwiensis'' G. R. Allen & Unmack, 2012Allen, G.R. & Unmack, P.J. (2012): A new species of Rainbowfish (''Chilatherina'': Melanotaeniidae), from the Sepik River System of Papua New Guinea. ''aqua, International Journal of Ichthyology, 18 (4): 227-237.'' * ''Chilatherina pricei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedotiinae
Bedotiinae are a subfamily of the rainbowfish family (biology), family Melanotaeniidae, commonly known as the Madagascar rainbowfish, Madagascan rainbowfish, or Malagasy rainbowfish due to their endemism to Madagascar. It includes two genus, genera, ''Bedotia'' and ''Rheocles''. Anatomy and morphology As the common name rainbowfish implies, they are generally colorful fishes. Bedotiins are elongated, laterally compressed, and rarely exceed 100 mm in fish measurement, standard length. Bedotiins exhibit varying degrees of sexual dimorphism, which is quite pronounced in some species. The anal fin spine is weak or absent. Distribution The entire family of Bedotiidae is endemism, endemic to Madagascar. Bedotiins occur exclusively in freshwater environments and are distributed in small to medium-sized forested rivers and streams, occasionally in swamps and marshes, spanning nearly the entire eastern slope of Madagascar (''R. derhami'' is recorded from a westward draining Sofia Riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Mosquitofish
The eastern mosquitofish (''Gambusia holbrooki'') is a species of freshwater fish, closely related to the western mosquitofish, ''Gambusia affinis''. It is a member of the family Poeciliidae of order Cyprinodontiformes. The eastern mosquitofish is native to the eastern and southern United States from Florida to Pennsylvania and inland to Alabama and Tennessee, while the western mosquitofish has a larger distribution throughout the United States. Description The Eastern mosquitofish is a small, light-colored fish with semitransparent fins. The females usually have a black stripe near their eye area and light spots can be seen on the caudal and dorsal fins of both sexes. Due to its similar size, shape, and reproductive habits, it can easily be mistaken for a guppy. Generally, males reach and females . These fish are a livebearer species, and as such, the females are larger and more rounded than the males. Pregnant females are also easily recognizable by their gravid spot; a darke ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rheocles
''Rheocles'' is a genus of Madagascar rainbowfish. ''Rheocles'' has a restricted distribution, being found only in certain forested freshwater habitats in the central and eastern highlands of Madagascar including the Nosivolo River. The genus appears to feed almost exclusively on allochthonous material, primarily insects falling onto the water surface. Taxonomy In a 1990 study, this genus is monophyletic. However, in a 2004 analysis, it was found that ''Rheocles'' was paraphyletic, forming two distinct clades. ''R. alaotrensis'', ''R. lateralis'', and ''R. wrightae'' (all species that are not discernibly sexually dimorphic was recovered as the sister taxon of the rest of the bedotiids, including ''Bedotia'' sister to ''R. vatosa'' + ''R. derhami''. ''R. pellegrini'' and ''R. sikorae'' were excluded from this study due to lack of available material, however, ''R. sikorae'' is considered to be the sister taxon to ''R. wrightae''. Species There are currently seven recognized specie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedotia
''Bedotia'' is a genus of the family Bedotiidae of fishes endemic to Madagascar. Taxonomy This genus is monophyletic. Little is known regarding phylogenetic interrelationships of the numerous populations of ''Bedotia'' of eastern Madagascar, and the genus is in need of systematic revision. One author synonymized ''B. longianalis'' and ''B. tricolor'' with ''B. geayi'' with no justification. It is apparent that several species of ''Bedotia'' exist, although many of these are new to science and await description, whereas the taxonomic status of many nominal species remains uncertain. A 2004 study supported three major, more or less geographically distinct, clades of ''Bedotia'', one comprising species with distributions ranging from mid- to southeastern Madagascar (''B. madagascariensis'', ''B. geayi'', and ''B. tricolor'', plus four undescribed species), another including species restricted to eastern drainages north of the Masoala Peninsula (''B. marojejy'', plus four undescrib ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bedotia Geayi 1
''Bedotia'' is a genus of the family (biology), family Bedotiidae of fishes Endemism, endemic to Madagascar. Taxonomy This genus is monophyly, monophyletic. Little is known regarding phylogenetics, phylogenetic interrelationships of the numerous populations of ''Bedotia'' of eastern Madagascar, and the genus is in need of systematic revision. One author synonym (taxonomy), synonymized ''B. longianalis'' and ''B. tricolor'' with ''B. geayi'' with no justification. It is apparent that several species of ''Bedotia'' exist, although many of these are new to science and await Species description, description, whereas the taxonomic status of many nominal species remains uncertain. A 2004 study supported three major, more or less geographically distinct, clades of ''Bedotia'', one comprising species with distributions ranging from mid- to southeastern Madagascar (''B. madagascariensis'', ''B. geayi'', and ''B. tricolor'', plus four undescribed species), another including species restric ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freshwater Fish
Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments differ from marine conditions in many ways, especially the difference in levels of salinity. To survive fresh water, the fish need a range of physiology, physiological adaptations. 41.24% of all known species of fish are found in fresh water. This is primarily due to the rapid speciation that the scattered habitats make possible. When dealing with ponds and lakes, one might use the same basic models of speciation as when studying island biogeography. Physiology Freshwater fish differ physiologically from salt water fish in several respects. Their gills must be able to diffuse dissolved gases while keeping the salts in the body fluids inside. Their scales reduce water diffusion through the skin: freshwater fish that have lost too many scales will die. They also have well developed kidneys to reclaim salts from body flui ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Tate Regan
Charles Tate Regan FRS (1 February 1878 – 12 January 1943) was a British ichthyologist, working mainly around the beginning of the 20th century. He did extensive work on fish classification schemes. Born in Sherborne, Dorset, he was educated at Derby School and Queens' College, Cambridge and in 1901 joined the staff of the Natural History Museum, where he became Keeper of Zoology, and later director of the entire museum, in which role he served from 1927 to 1938. Regan was elected Fellow of the Royal Society in 1917. Regan mentored a number of scientists, among them Ethelwynn Trewavas, who continued his work at the British Natural History Museum. Species Among the species he described is the Siamese fighting fish (''Betta splendens''). In turn, a number of fish species have been named ''regani'' in his honour: *A Thorny Catfish '' Anadoras regani'' (Steindachner, 1908) *The Dwarf Cichlid '' Apistogramma regani'' *'' Apogon regani'' *A Catfish '' Astroblepus regani'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Leavitt Hubbs
Carl Leavitt Hubbs (October 19, 1894 – June 30, 1979) was an American ichthyologist. Biography Youth He was born in Williams, Arizona. He was the son of Charles Leavitt and Elizabeth (née Goss) Hubbs. His father had a wide variety of jobs (farmer, iron mine owner, newspaper owner). The family moved several times before settling in San Diego where he got his first taste of natural history. After his parents divorced in 1907, he lived with his mother, who opened a private school in Redondo Beach, California. His maternal grandmother Jane Goble Goss, one of the first female doctors, showed Hubbs how to harvest shellfish and other sea creatures. One of his teachers, impressed by Hubbs's abilities in science, recommended that he study chemistry at the University of Berkeley. The family moved once more to Los Angeles. In Los Angeles, George Bliss Culver, one of the many volunteers of David Starr Jordan, encouraged Hubbs to abandon his study of birds and instead to study fish, par ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
