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Pseudolithoxus
''Pseudolithoxus'' is a genus of suckermouth armored catfishes with five described species from the basins of the Orinoco, Casiquiare and upper Rio Negro in Venezuela. Additionally, a possibly undescribed species is known from the Trombetas and Nhamundá rivers in Brazil. Taxonomy The species group was originally described in 2000 and the four species were temporarily placed in '' Lasiancistrus''. In 2001, the genus ''Pseudolithoxus'' was erected for these species. This group forms a monophyletic sister group to ''Lasiancistrus'' and ''Ancistrus''. ''P. anthrax'' and ''P. nicoi'' likely represent sister species. In 2011, ''P. kelsorum'' was described based on type material from Venezuela. Species There are currently five recognized species in this genus: * '' Pseudolithoxus anthrax'' ( Armbruster & Provenzano, 2000) * '' Pseudolithoxus dumus'' ( Armbruster & Provenzano, 2000) * '' Pseudolithoxus kelsorum'' Lujan & Birindelli, 2011 * '' Pseudolithoxus nicoi'' ( Armbruste ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudolithoxus Kelsorum
''Pseudolithoxus kelsorum'' is a species of catfish in the family Loricariidae. It is native to South America, where it is known only from a single site in the Orinoco drainage, located above the Maipures Rapids and south of the Atures Rapids (near the Atures Municipality) in the Venezuelan state of Amazonas. The species reaches 6.6 cm (2.6 inches) SL. ''P. kelsorum'' appears in the aquarium trade, where it is usually referred to either as the banded pancake pleco (presumably referencing its patterning and its dorsoventrally flattened shape) or by its associated L-number The L-number system is a semi-scientific classification system of catfish based on photographs of shipments of tropical catfish of the family Loricariidae published by the German aquarium magazine DATZ (Die Aquarien- und Terrarienzeitschrift (The ..., which is L-189. References {{Taxonbar, from=Q5574172 Fish described in 2011 Loricariidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudolithoxus Tigris
''Pseudolithoxus tigris'' is a species of armored catfish endemic to Venezuela where it is found in the upper Orinoco and Ventuari River The Ventuari River is the largest tributary of the Orinoco in southern Venezuela. The Ventuari flows from south-central Venezuela in the Guiana Highlands southwest into the Orinoco River. It is long and its major tributary is the Manapiare River. ... basins. This species grows to a length of SL. ''P. tigris'' probably matures at a relatively small size; in a specimen about 5 cm (2 in) SL, the snout and pectoral-fin spine odontodes are already greatly elongated, while the odontodes are only beginning to develop in similarly sized specimens of other species. References * Ancistrini Fish of Venezuela Endemic fauna of Venezuela Fish described in 2000 Taxa named by Jonathan W. Armbruster {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudolithoxus Dumus
''Pseudolithoxus dumus'' is a species of armored catfish endemic to Venezuela where it occurs in the Orinoco, Negro and Casiquiare canal The Casiquiare river () is a distributary of the upper Orinoco flowing southward into the Rio Negro, in Venezuela, South America. As such, it forms a unique natural canal between the Orinoco and Amazon river systems. It is the world's largest r ... basins. This species grows to a length of SL. References * External linksSpecies description Further reading * Fish described in 2000 Ancistrini Fish of Venezuela Endemic fauna of Venezuela Taxa named by Jonathan W. Armbruster {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudolithoxus Anthrax
''Pseudolithoxus anthrax'' is a species of armored catfish endemic to Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ... where it is found in the Orinoco River basin. This species grows to a length of SL. References * Ancistrini Fish of Venezuela Endemic fauna of Venezuela Fish described in 2000 Taxa named by Jonathan W. Armbruster {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudolithoxus Nicoi
''Pseudolithoxus nicoi'' is a species of armored catfish endemic to Venezuela where it is found in the upper Negro and Casiquiare canal The Casiquiare river () is a distributary of the upper Orinoco flowing southward into the Rio Negro, in Venezuela, South America. As such, it forms a unique natural canal between the Orinoco and Amazon river systems. It is the world's largest r ... basins. This species grows to a length of SL. References * Ancistrini Fish of Venezuela Endemic fauna of Venezuela Fish described in 2000 Taxa named by Jonathan W. Armbruster {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lasiancistrus
''Lasiancistrus'' is a genus of suckermouth armored catfishes. They are native to South America and Panama. Taxonomy ''Lasiancistrus'' was first described as a subgenus of ''Ancistrus'' in 1904, including ''A. heteracanthus'', ''A. pictus'', ''A. mystacinus'', and ''A. guacharote''. Later, it was raised to genus level, and several unrelated species were included. Many of these species have since been moved to other genera, such as ''Pseudolithoxus''. Most ''Lasiancistrus'' species had been described from few specimens; the genus was revised in 2005, synonymizing many of the existing species into four species, ''L. caucanus'', ''L. guacharote'', ''L. heteracanthus'', and ''L. schomburgkii''. ''L. maracaiboensis'' and ''L. mystacinus'' are synonyms of ''L. guacharote''. ''L. castelnaui'', ''L. caquetae'', ''L. guapore'', ''L. multispinis'', ''L. pictus'', and ''L. scolymus'' are synonyms of ''L. schomburgkii''. ''L. planiceps'', ''L. mayoloi'', and ''L. volcanensis'' are synonyms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jonathan W
Jonathan may refer to: *Jonathan (name), a masculine given name Media *Jonathan (1970 film), ''Jonathan'' (1970 film), a German film directed by Hans W. Geißendörfer *Jonathan (2016 film), ''Jonathan'' (2016 film), a German film directed by Piotr J. Lewandowski *Jonathan (2018 film), ''Jonathan'' (2018 film), an American film directed by Bill Oliver *Jonathan (Buffy comic), ''Jonathan'' (Buffy comic), a 2001 comic book based on the ''Buffy the Vampire Slayer'' television series *Jonathan (TV show), ''Jonathan'' (TV show), a Welsh-language television show hosted by ex-rugby player Jonathan Davies (rugby, born 1962), Jonathan Davies People and biblical figures Bible *Jonathan (1 Samuel), son of King Saul of Israel and friend of David, in the Books of Samuel *Jonathan (Judges), in the Book of Judges Judaism *Jonathan Apphus, fifth son of Mattathias and leader of the Hasmonean dynasty of Judea from 161 to 143 BCE *Rabbi Jonathan, 2nd century *Jonathan (High Priest), a High Prie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anatomical Terms Of Location
Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position provides a definition of what is at the front ("anterior"), behind ("posterior") and so on. As part of defining and describing terms, the body is described through the use of anatomical planes and anatomical axes. The meaning of terms that are used can change depending on whether an organism is bipedal or quadrupedal. Additionally, for some animals such as invertebrates, some terms may not have any meaning at all; for example, an animal that is radially symmetrical will have no anterior surface, but can still have a description that a part is close to the middle ("proximal") or further from the middle ("distal"). International organisations have determined vocabularies that are often used as standard vocabularies for subdisciplines of anatom ... [...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 lu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Peduncle
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] |
Odontode
Odontodes, or dermal teeth, are hard structures found on the external surfaces of animals or near internal openings. They consist of a soft pulp surrounded by dentine and covered by a mineralized substance such as enamel, a structure similar to that of teeth. They generally do not have the same function as teeth, and are not replaced the same way teeth are in most fish. In some animals (notably catfish), the presence or size of odontodes can be used in determining the sex. Odontodes typically cover the body of chondrichthyans (cartilaginous fishes), while mineralized dermal scales are characteristic of bony fishes. During the evolution to bony fishes, ancestral odontodes have been modified to become dermal scales, including elasmoid scales in teleosteans. Etymology The name comes from the Greek "''odous, gen. The Book of Genesis (from Greek language, Greek ; Hebrew language, Hebrew: בְּרֵאשִׁית ''Bəreʾšīt'', "In hebeginning") is the first book of the Hebrew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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