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Ancistrini
Ancistrini is a tribe of catfishes of the family Loricariidae. Most are restricted to tropical and subtropical South America, but there are also several genus (''Ancistrus'', '' Chaetostoma'', ''Hemiancistrus'' and ''Lasiancistrus'') in southern Central America. Taxonomy Ancistrini have previously been considered a loricariid subfamily. However, the subfamily Hypostominae would be paraphyletic if Ancistrinae continued to be recognized. To continue recognizing the monophyly of this group while returning it to Hypostominae, Hypostominae was broken into several tribes. Pterygoplichthyini is sister to the tribe Ancistrini, which shares the derived presence of an evertible patch of plates on the cheek. Description Most Ancistrini species (except for some ''Pseudancistrus'' and ''Spectracanthicus'') can be separated from all other loricariids except the Pterygoplichthyini by the presence of evertible cheek plates with hypertrophied odontode Odontodes, or dermal teeth, are hard structu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peckoltia
''Peckoltia'' is a genus of small South American Loricariidae, armored suckermouth catfishes. Many of these fish are popular aquarium fish. Taxonomy ''Peckoltia'' is a Basal (phylogenetics), basal genus within the tribe Ancistrini of the subfamily Hypostominae. This genus is paraphyly, paraphyletic. At this point, many undescribed taxon, undescribed species remain. Many of the possibly undescribed species have an identification through the L-number system. ''Peckoltia'' species can be distinguished from most other in the genera in the tribe Ancistrini by having a lateral ridge on the opercle that usually has no odontodes and the teeth on their upper jaw (dentary) forming an angle under 90 degrees; while some genera also have an angled dentary, ''Peckoltia'' species lack synapomorphy, synapomorphies of these genera. This genus and the closely related ''Hemiancistrus'' may be synonym (taxonomy), synonymous, as neither genus is supported by synapomorphies. Generally, ''Peckoltia'' a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudacanthicus
''Pseudacanthicus'' is a genus of medium to large-sized suckermouth armored catfishes native to South America, where found in the Amazon and Orinoco basins, as well as rivers of the Guianas. They are primarily found in fast-flowing waters, sometimes relatively deep. They are sometimes kept in aquariums. Species There are currently 8 recognized species in this genus: * '' Pseudacanthicus fordii'' ( Günther, 1868) * '' Pseudacanthicus histrix'' (Valenciennes, 1840) * '' Pseudacanthicus leopardus'' ( Fowler, 1914) * '' Pseudacanthicus major'' Chamon & Costa e Silva, 2018Chamon, Carine C. ; and Thiago Costa e Silva (2018). Pseudacanthicus major: Description of One of the Largest Known Loricariidae (Hypostominae: Ancistrini), A Species from rio Tocantins Basin, Brazil. Zootaxa. 4387(3); 499–510. * '' Pseudacanthicus pirarara'' Chamon & L. M. de Sousa, 2016Chamon, C.C. & Sousa, L.M. (2016): A new species of the leopard pleco genus ''Pseudacanthicus'' (Siluriformes: Loricariid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancistrus
''Ancistrus'' is a genus of nocturnal freshwater fish in the family Loricariidae of order Siluriformes, native to freshwater habitats in South America and Panama. Fish of this genus are common in the aquarium trade where they are known as bushynose or bristlenose catfish. In the aquarium hobby they are often referred to as bushynose or bristlenose plecos instead, but this may lead to confusion as "pleco" usually is used for ''Hypostomus plecostomus'' and its allies and is often used as a catchall term for any loricariids remotely resembling that species. Taxonomy The type species is ''Ancistrus cirrhosus''. This genus is the largest genus within the tribe Ancistrini. The name ancistrus derives from the Ancient Greek ''agkistron'' "hook" – a reference to the form of the cheek odontodes. The genera ''Pristiancistrus'', ''Thysanocara'' and ''Xenocara'' are now synonyms of ''Ancistrus''. Description ''Ancistrus'' species show all the typical features of the Loricariidae. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithoxus
''Lithoxus'' is a genus of suckermouth armored catfishes native to tropical South America. Taxonomy ''Lithoxus'' is supported as a monophyletic sister to '' Exastilithoxus''. Together, these two genera form a well-supported clade. Species There are currently eight recognized species in this genus: * '' Lithoxus boujardi'' So. Muller & Isbrücker, 1993 * '' Lithoxus bovallii'' (Regan, 1906) * '' Lithoxus jantjae'' Lujan, 2008 * '' Lithoxus lithoides'' C. H. Eigenmann, 1912 * '' Lithoxus pallidimaculatus'' Boeseman, 1982 * '' Lithoxus planquettei'' Boeseman, 1982 * '' Lithoxus stocki'' Nijssen & Isbrücker, 1990 * '' Lithoxus surinamensis'' Boeseman, 1982 Distribution ''Lithoxus'' range from the Oyapock drainage along the border between Brazil and French Guiana, through Suriname west to the Tacutu River along the border between Guyana and Brazil and south to the Uatama and Trombetas rivers of Brazil. Description ''Lithoxus'' contains some of the most dorsoventra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dekeyseria
''Dekeyseria'' is a genus of suckermouth armored catfishes native to tropical South America. Species There are currently six recognized species in this genus: * '' Dekeyseria amazonica'' Rapp Py-Daniel, 1985 * '' Dekeyseria brachyura'' ( Kner, 1854) * '' Dekeyseria niveata'' ( La Monte, 1929) * '' Dekeyseria picta'' ( Kner, 1854) * '' Dekeyseria pulchra'' ( Steindachner, 1915) * '' Dekeyseria scaphirhyncha'' ( Kner, 1854) Taxonomy ''Dekeyseria'' was first described with ''D. amazonica'' as type species in 1985 by Rapp Py-Daniel. Later, ''Zonancistrus'' was described for ''D. brachyura'', ''D. picta'', and ''D. pulchra''. However, this distinction was based on colouration, which is not a useful characteristic in diagnosing genera in loricariids; other genera such as ''Hypancistrus'' and ''Pseudolithoxus'' also exhibit a range of colouration patterns. Though ''Dekeyseria'' is not diagnosed by any unique characteristic, it is still a well-diagnosed genus. Distribution ''Dekeyseri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudancistrus
''Pseudancistrus'' is a genus of suckermouth armored catfishes native to South America. Taxonomy ''Pseudancistrus'' is a genus in the tribe Ancistrini of the subfamily Hypostominae. It was described by Pieter Bleeker in 1862, and redescribed by Jonathan Armbruster in 2004. Currently, there are 18 recognized species distributed in northern South America, with the inclusion of the genera ''Lithoxancistrus'', the species formerly known as ''Hemiancistrus megacephalus'', as well as the recently described ''Pseudancistrus corantijniensis''. There is no single morphological feature which distinguishes the group from related genera. Despite this, ''Pseudancistrus'' is generally recognized as a monophyletic group. Within the genus there is what is called the ''P. barbatus'' group. This group comprises Guyanese derived ''Pseudancistrus'' bearing hypertrophied odontodes along the snout and nonevertible cheek plates. It includes the five species ''P. barbatus'', ''P. corantijniensis'', '' ... [...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] |
Hemiancistrus
''Hemiancistrus'' is a genus of suckermouth armored catfishes. These species are native to South America. The taxonomy of this genus is complex and unclear, and major work has to be done. Many of these fish are popular aquarium fish. Taxonomy ''Hemiancistrus'' is a genus within the tribe Ancistrini of the subfamily Hypostominae. This genus has long been used as a "dump" for Loricariid species; fish with unclear relationships have been classified as members of this genus. As such, this taxon is not monophyletic. At this point, many undescribed species remain. This genus and the closely related ''Peckoltia'' may be synonymous, as neither genus is supported by synapomorphies. ''Hemiancistrus'' species differ from other members of the ''Panaque'' clade lacking the synapomorphies of the other genera and having the dentaries meeting at an angle greater than 120°; in ''Peckoltia'' species, the dentaries meet at less than 90° Generally, ''Peckoltia'' are considered to be those that h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leporacanthicus
''Leporacanthicus'' is a genus of suckermouth armored catfishes native to South America. Species There are currently four recognized species in this genus: * '' Leporacanthicus galaxias'' Isbrücker & Nijssen, 1989 * '' Leporacanthicus heterodon'' Isbrücker & Nijssen, 1989 * '' Leporacanthicus joselimai'' Isbrücker & Nijssen, 1989 * '' Leporacanthicus triactis'' Isbrücker, Nijssen & Nico, 1992 Distribution The genus has been reported from the upper Orinoco, the eastern, north-flowing Amazon tributaries, and the Tocantins River. Description ''Leporacanthicus'' species have large teeth in the upper jaw; usually there are only two teeth on each premaxilla, the inner teeth very long. Species of ''Leporacanthicus'' are medium-sized loricariids with a narrow, pointed head, round lower lip, and fleshy tentacles on the upper lip. The colour pattern is generally dark gray to black with white to golden spots or a light gray with medium-sized black spots. The abdomen is nak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hypancistrus
''Hypancistrus'' is a genus of loricariid catfish originating from the Amazon basin in South America. Unlike many of the other Loricariids, however, some ''Hypancistrus'' species are more carnivorous and enjoy meat in their diet. ''Hypancistrus'' species are popular aquarium fish, including such popular fish as the zebra pleco and Queen Arabesque pleco. Etymology The name ''Hypancistrus'' is derived from the Greek ''"hypo"'' meaning under and ''"agkistron"'' meaning hook. Taxonomy This genus is a relatively recent one, described in 1991 with its type species ''H. zebra''. ''H. inspector'' was the next species to be described in 2002. In 2007, four new species of ''Hypancistrus'' were described. However, there are still many more undescribed species. These undescribed species are often designated with L-numbers. It was believed that this genus isn't monophyletic, though this has since changed. Species There are currently 8 recognized species in this genus: * '' Hypancistrus c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neblinichthys
''Neblinichthys'' is a small genus of suckermouth armored catfishes native to South America. Species There are currently six recognized species in this genus: * '' Neblinichthys brevibracchium'' Taphorn, Armbruster, López-Fernández & C. R. Bernard, 2010 * '' Neblinichthys echinasus'' Taphorn, Armbruster, López-Fernández & C. R. Bernard, 2010 * '' Neblinichthys peniculatus'' Armbruster & Taphorn, 2013Armbruster, J.W. & Taphorn, D.C. (2013)Description of ''Neblinichthys peniculatus'', a new species of loricariid catfish from the río Paragua drainage of Venezuela. ''Neotropical Ichthyology, 11 (1): 65-72.'' * '' Neblinichthys pilosus'' Ferraris, Isbrücker & Nijssen, 1986 * '' Neblinichthys roraima'' Provenzano, Lasso & Ponte, 1995 * '' Neblinichthys yaravi'' ( Steindachner, 1915) Etymology According to FishBase, ''Neblinichthys'' is derived from the Latin ''nebula'' which means ''mist'' or ''vapor'', and ''ichthys'' for ''fish''. However, it has been stated by some sourc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalancistrus
''Megalancistrus'' is a genus of large suckermouth armored catfishes native to South America. Species There are currently two recognized species in this genus: * '' Megalancistrus barrae'' ( Steindachner, 1910) * '' Megalancistrus parananus'' ( W. K. H. Peters, 1881) Distribution The genus ''Megalancistrus'' are found in the Río de la Plata and São Francisco River basins. Description ''Megalancistrus'' species are large and spiny and generally have 10 dorsal-fin rays. The color on the sides and the abdomen is dark brown with very large spots on the head, sides, and fins or with light vermicualtions. The abdomen is completely plated in adults. The caudal fin is forked, but without filaments. Cheek odontodes, as in '' Acanthicus'', are thin but numerous. The plates on the body are well keeled with rows of odontodes above and below the keel rows incomplete in specimens up to at least . Ecology ''Megalancistrus'' species are live in large rivers. These fish eat freshwat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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