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Chaetobranchini
Chaetobranchini is a tribe of the subfamily Cichlinae, the American cichlids. They are distributed from the river basin of the Orinoco and the Guianas south to the basins of the Río Paraná and Río Paraguay . The two recognised genera of the Chaetobranchini have been classified together with '' Astronotus'' in the subfamily Astronotinae but the consensus is that this genus forms the monogeneric tribe, the Astronotini, these two each being one of the seven tribes in Cichlinae. Characteristics The species in Chaetobranchini grow to lengths of in length and have an oval, laterally compressed body with a pointed head. They have small mouths and teeth, feed on plankton using filaments on their gill arches as a filter. The chaetobranchins possess a very reduced lower pharyngeal jaw which has elongated lateral processes, a keel and conical teeth. Chaetobranchines are also characterised by their long pointed pectoral fins, which extend alsmot to the end of the base of the anal fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichlinae
The Cichlinae are a subfamily of fishes in the cichlid family, native to South America. This subfamily consists of approximately 117 described species as of July 2017. Some authors have suggested that the Cichlinae encompasses all of the Neotropical Cichlids and found the taxon to be monphyletic and to be divided into seven tribes: Astronotini, Chaetobranchini, Cichlasomatini, Cichlini, Geophagini, Heroini, and Retroculini. In this system the Geophaginae plus the Chaetobranchini were recovered as the sister taxon to the clade consisting of the Heroini plus the Cichlatsomatini, these latter two being referred to as the subfamily Cichlasomatinae in some classifications, while the monogeneric Astronotini was a sister taxon to these four, while the Cichlini and Retroculini made up a sister clade of the other five. Tribes The following tribes make up the subfamily Cichlinae: * Cichlini * Retroculini * Astronotini * Chaetobranchini * Geophagini * Cichlasomatini * Hero ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetobranchus
''Chaetobranchus'' is a small genus of cichlid fishes from South America where they are native to the Amazon Basin, Orinoco Basin and rivers in the Guianas. Species There are currently two recognized species in this genus: * '' Chaetobranchus flavescens'' Heckel, 1840 * '' Chaetobranchus semifasciatus'' Steindachner Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner describ ..., 1875 References Chaetobranchini Cichlid genera Taxa named by Johann Jakob Heckel {{Cichlidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaetobranchopsis
''Chaetobranchopsis'' is a small genus of cichlid fishes from South America, where they are found in the Amazon, Paraná and Paraguay river basins. Species There are currently two recognized species in this genus: * '' Chaetobranchopsis australis'' C. H. Eigenmann & Ward, 1907 * '' Chaetobranchopsis orbicularis'' (Steindachner Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner describ ..., 1875) References Chaetobranchini Fish of South America Cichlid genera Taxa named by Franz Steindachner {{cichlid-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronotini
''Astronotus'' is a genus of South American fish from the family Cichlidae. There are two commonly recognized species in the genus (listed below), though genetic evidence suggests that additional species exist; several of these possibly distinct populations also have very different juvenile coloration from the two recognized species. Both of the commonly recognized species are found in the Amazon Basin, while one of two also is found in the Paraná and Paraguay rivers. ''Astronotus'' species grow to 35 cm in size, and are monomorphic. They are opportunistic omnivores and consume a range of smaller fish, fruits, nuts, crustaceans, mollusks and other invertebrates in the wild. One species, the oscar (''Astronotus ocellatus''), is popular in the aquarium trade. ''A. ocellatus'' forms monogamous pairs which spawn in the open, typically on a flattened stone or in a shallow depression. The juvenile colouration is different from that of the adult and may aid in camouflage of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Jakob Heckel
Johann Jakob Heckel (23 January 1790 – 1 March 1857) was an Austrian taxidermist, zoologist, and ichthyologist from Mannheim in the Electoral Palatinate. Life Though not a formally trained biologist, he worked his way up through the ranks to eventually become the director of the Fish Collection at the Naturhistorisches Museum in Vienna. For the most part, he was not a traveler or explorer like many of the scientists of the time, he remained in Vienna, where he studied and catalogued specimens sent to him from the field. Among those who brought specimens to him were Karl Alexander Hügel, Joseph Russegger and Theodor Kotschy — involving collection activities in Kashmir, the Middle East and northeastern Africa that greatly enriched the Vienna museum. Fish were his specialty and he worked with many of the greatest ichthyologists of his time including Cuvier, Valenciennes, Bonaparte, Müller, and Troschel. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Steindachner
Franz Steindachner (11 November 1834 in Vienna – 10 December 1919 in Vienna) was an Austrian zoologist, ichthyologist, and herpetologist. He published over 200 papers on fishes and over 50 papers on reptiles and amphibians. Steindachner described hundreds of new species of fish and dozens of new amphibians and reptiles. At least seven species of reptile have been named after him. Work and career Being interested in natural history, Steindachner took up the study of fossil fishes on the recommendation of his friend Eduard Suess (1831–1914). In 1860 he was appointed to the position of director of the fish collection at the Naturhistorisches Museum, a position which had remained vacant since the death of Johann Jakob Heckel (1790–1857). (in German). Steindachner's reputation as an ichthyologist grew, and in 1868 he was invited by Louis Agassiz (1807–1873) to accept a position at the Museum of Comparative Zoology at Harvard University. Steindachner took part in the Has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal 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 ... [...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] |
Agustín Fernández Yépez
Agustín is a Spanish given name and sometimes a surname. It is related to Augustín. People with the name include: Given name * Agustín (footballer), Spanish footballer * Agustín Calleri (born 1976), Argentine tennis player * Agustín Cárdenas (1927–2001), Afro-Cuban sculptor * Agustín de Iturbide (1783–1824), First Emperor of Mexico * Agustín de Rojas Villandrando (1572–1618), Spanish writer and actor * Agustín Fiorilli (born 1978), Argentine swimmer * Agustín Jerónimo de Iturbide y Huarte (1807–1866), Prince Imperial of Mexico * Agustín Pedro Justo (1876–1943), former President of Argentina. * Agustín Lara, renowned Mexican musician * Agustín Moreno (born 1967), former tennis player * Agustín Muñoz Grandes (1896–1970), Spanish general and politician * Agustin Olvera (died 1876), pioneer of Los Angeles, California * Agustín Pichot (born 1974), Argentine Rugby union player * Agustin Presinger (1869–1934) German bishop and missionary * Agustín Barr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tribe (biology)
In biology, a tribe is a taxonomic rank above genus, but below family (biology), family and subfamily. It is sometimes subdivided into subtribes. By convention, all taxonomic ranks from genus upwards are capitalized, including both tribe and subtribe. In zoology, the standard ending for the name of a zoological tribe is "-ini". Examples include the tribes Goat-antelope#Tribe Caprini, Caprini (goat-antelopes), Hominini (hominins), Bombini (bumblebees), and Thunnini (tunas). The tribe Hominini is divided into subtribes by some scientists; subtribe Hominina then comprises "humans". The standard ending for the name of a zoological subtribe is "-ina". In botany, the standard ending for the name of a botanical tribe is "-eae". Examples include the tribes Acalypheae and Scilloideae#Hyacintheae, Hyacintheae. The tribe Hyacintheae is divided into subtribes, including the subtribe Massoniinae. The standard ending for the name of a botanical subtribe is "-inae". In bacteriology, the form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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