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Scleromystax
''Scleromystax'' is a genus of fish in the family Callichthyidae endemic to small tributaries from several coastal river basins draining the southern and southeastern regions in Brazil. Most of the species of ''Scleromystax'' are highly sexually dimorphic; males have developed odontodes inserted in fleshy papillae on the preopercular-opercular region and the dorsal and pectoral fins are 2–3 times as long as those of females. ''S. salmacis'' is an exception, as its sexually dimorphic features are subtle and non-remarkable. Taxonomy The species of ''Scleromystax'' were previously classified within the genus ''Corydoras''. However, ''Scleromystax'' species are now thought to be more closely related to ''Aspidoras'' in a tribe called Aspidoradini.Britto, M.R. (2003)Phylogeny of the subfamily Corydoradinae Hoedeman, 1952 (Siluriformes: Callichthyidae), with a definition of its genera. ''Proceedings of the Academy of Natural Sciences of Philadelphia, 153 (1): 119–154.'' Altho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scleromystax Barbatus
The banded corydoras or bearded catfish (''Scleromystax barbatus'') is a subtropical freshwater fish belonging to the subfamily Corydoradinae of the family Callichthyidae. It originates in coastal drainages in South America from Rio de Janeiro to Santa Catarina, Brazil. Taxonomy It was originally described as ''Callichthys barbatus'' by Jean René Constant Quoy & Joseph Paul Gaimard in 1824, from which it was transferred to genus Corydoras as ''Corydoras barbatus'', a name which by which it is still being referred to in the aquarium industry. The species was further transferred to genus ''Scleromystax'' in 2003. Description The fish will grow in length up to 9.8 centimetres (3.9 in). This species has pronounced sexual dimorphism. The dorsal and pectoral fins of males reach, or almost reach, the caudal peduncle, and well-developed odontodes are inserted in fleshy tissue on a large area on the sides of the snout in fully grown males. Habitat and ecology The banded c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scleromystax Reisi
''Scleromystax reisi'' is a species of catfish of the family Callichthyidae. Its distribution is in the streams of tributaries of the rio Jacuí and rio Camaquã of the laguna dos Patos drainage, of the Rio Grande do Sul in Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ....Britto, M.R., Fukakusa, C.K. & Malabarba, L.R. (2016)New species of ''Scleromystax'' Günther, 1864 (Siluriformes: Callichthyidae) - extending the meridional distribution of genera endemic to the Atlantic Forest.''Neotropical Ichthyology, 14 (3): e150158.'' Etymology The fish is named in honor of Roberto E. Reis of the Pontificia Universidade Católica do Rio Grande do Sul, because of his many contributions to neotropical ichthyology, and the studies of callichthyid fishes. References , Introducing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scleromystax Prionotos
''Scleromystax prionotos'' is a tropical freshwater catfish belonging to the subfamily Corydoradinae of the family Callichthyidae. It originates in inland waters in South America, and is found in coastal rivers in southeastern Brazil from Espírito Santo to São Paulo. It was originally described by H. Nijssen & I. J. H. Isbrücker in 1980. The scientific name is occasionally misspelled ''C. prionotus''. The fish will grow in length up to 2.1 inches (5.3 centimeters). It lives in a tropical climate in water with a 6.0 – 8.0 pH, a water hardness of 2 – 25 dGH, and a temperature range of 72 – 78 °F (22 – 26°C). It feeds on worms, benthic crustaceans, insects, and plant matter. It lays eggs in dense vegetation and adults do not guard the eggs. See also * List of freshwater aquarium fish species A vast number of aquatic species have successfully adapted to live in the freshwater aquarium. This list gives some examples of the most common species found in home aqua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scleromystax Macropterus
The sailfin corydoras (''Scleromystax macropterus''), bigfin corydoras, or largefin corydoras is a subtropical freshwater fish belonging to the Corydoradinae sub-family of the family Callichthyidae. It originates in coastal rivers in South America, and is found from São Paulo to Santa Catarina, Brazil and some upper Paraná River tributaries. It was originally described, under the name ''Corydoras macropterus'', by C. Tate Regan in 1913. The fish will grow in length up to 3.4 inches (8.7 centimeters). It lives in a subtropical climate in water with a 6.0 – 8.0 pH, a water hardness of 2 – 25 dGH, and a temperature range of 64 – 70 °F (18 – 21 °C). It feeds on worms, benthic crustaceans, insects, and plant matter. It lays eggs in dense vegetation and adults do not guard the eggs. The sailfin corydoras is of commercial importance in the aquarium trade industry. See also * List of freshwater aquarium fish species A vast number of aquatic species have successful ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callichthyidae
Callichthyidae is a family of catfishes ( order Siluriformes), called armored catfishes due to the two rows of bony plates (or scutes) along the lengths of their bodies. It contains some of the most popular freshwater aquarium fish, such as many species in the genus ''Corydoras''. Taxonomy The family derives its name from the Greek words ''kallis'' (beautiful) and ''ichthys'' (fish). Callichthyidae is one of six families in the superfamily Loricarioidea, and is sister to a clade formed by Scoloplacidae, Astroblepidae, and Loricariidae. Within the family Callichthyidae, the two subfamilies have eight genera and about 177 species, accounting for about 7% of all catfish. Most of these species are in the genus ''Corydoras'', the largest catfish genus. The subfamily Corydoradinae includes about 90% of the species in the family Callichthyidae and is one of the most diverse siluriform assemblages in the Neotropics, with about 170 valid species. It includes two tribes, Aspidoradini and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corydoradinae
Callichthyidae is a family of catfishes ( order Siluriformes), called armored catfishes due to the two rows of bony plates (or scutes) along the lengths of their bodies. It contains some of the most popular freshwater aquarium fish, such as many species in the genus ''Corydoras''. Taxonomy The family derives its name from the Greek words ''kallis'' (beautiful) and ''ichthys'' (fish). Callichthyidae is one of six families in the superfamily Loricarioidea, and is sister to a clade formed by Scoloplacidae, Astroblepidae, and Loricariidae. Within the family Callichthyidae, the two subfamilies have eight genera and about 177 species, accounting for about 7% of all catfish. Most of these species are in the genus ''Corydoras'', the largest catfish genus. The subfamily Corydoradinae includes about 90% of the species in the family Callichthyidae and is one of the most diverse siluriform assemblages in the Neotropics, with about 170 valid species. It includes two tribes, Aspidoradini and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corydoras
''Corydoras'' is a genus of freshwater catfish in the family Callichthyidae and subfamily Corydoradinae. The species usually have more restricted areas of endemism than other callichthyids, but the area of distribution of the entire genus almost equals the area of distribution of the family, except for Panama where ''Corydoras'' is not present. ''Corydoras'' species are distributed in South America where they can be found from the east of the Andes to the Atlantic coast, from Trinidad to the Río de la Plata drainage in northern Argentina. Species assigned to ''Corydoras'' display a broad diversity of body shapes and coloration. ''Corydoras'' are small fish, ranging from in SL., and are protected from predators by their body armor and by their sharp, typically venomous spines. Taxonomy The name ''Corydoras'' is derived from the Greek ''kory'' (helmet) and ''doras'' (skin). ''Corydoras'' is by far the largest genus of Neotropical fishes with more than 160 species. It is the sole ... [...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] |
Han Nijssen
Han Nijssen (1935– 2013)H. Nijssen, 1935 - at the UvA Album academicum was a Dutch ichthyologist. Nijssen was born in and obtained his PhD at the in May 1970 with the dissertation ''Revision of the Surinam catfishes of the genus Corydoras''. Later he was a at [...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] |
Joseph Paul Gaimard
Joseph Paul Gaimard (31 January 1793 – 10 December 1858) was a French naval surgeon and naturalist. Biography Gaimard was born at Saint-Zacharie on January 31, 1793. He studied medicine at the naval medical school in Toulon, subsequently earning his qualifications as a naval surgeon. Along with Jean René Constant Quoy, he served as naturalist on the ships ''L'Uranie'' under Louis de Freycinet 1817–1820, and '' L'Astrolabe'' under Jules Dumont d'Urville 1826–1829.Google Books Discovery of Australia's Fishes: A History of Australian Ichthyology to 1930 by Brian Saunders During this voyage they discovered the now extinct giant of |
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