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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] |
Dekeyseria Niveata
''Dekeyseria niveata'' 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 upper Orinoco River basin. This species grows to a length of SL. References * Ancistrini Fish described in 1929 Fish of Venezuela Endemic fauna of Venezuela {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dekeyseria Picta
''Dekeyseria picta'' is a species of armored catfish endemic to Brazil, and found in the lower Rio Negro basin, the largest left tributary of the Amazon River The Amazon River (, ; es, Río Amazonas, pt, Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the disputed longest river system in the world in comparison to the Nile. The headwaters of t .... This species grows to a length of TL. References * Ancistrini Catfish of South America Freshwater fish of Brazil Endemic fauna of Brazil Fish described in 1854 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dekeyseria Scaphirhyncha
''Dekeyseria scaphirhyncha'' is a species of armored catfish endemic to 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 ... where it is found in the Rio Negro basin. This species grows to a length of SL. References * Ancistrini Catfish of South America Freshwater fish of Brazil Endemic fauna of Brazil Fish described in 1854 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dekeyseria Amazonica
''Dekeyseria amazonica'' is a species of armored catfish endemic to Brazil where it is found in the Solimões and Amazon basin The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about , or about 35.5 percent of the South American continent. It is located in the countries of Bolivi ...s. This species grows to a length of SL. References * Ancistrini Freshwater fish of Brazil Endemic fauna of Brazil Fish of the Amazon basin Fish described in 1985 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dekeyseria Brachyura
''Dekeyseria brachyura'' is a species of armored catfish endemic to 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 ... where it is found in the lower Rio Negro basin. This species grows to a length of TL. References * Ancistrini Catfish of South America Freshwater fish of Brazil Endemic fauna of Brazil Fish described in 1854 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dekeyseria Pulchra
''Dekeyseria pulchra'' is a species of armored catfish native to Brazil, Colombia and Venezuela where it is found in the upper Rio Negro, Orinoco 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. ''D. pulcher'' is noted to be an algae-eater. References * Ancistrini Catfish of South America Freshwater fish of Brazil Freshwater fish of Colombia Fish of Venezuela Fish described in 1915 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
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] |
Chameleon
Chameleons or chamaeleons (family Chamaeleonidae) are a distinctive and highly specialized clade of Old World lizards with 202 species described as of June 2015. The members of this family are best known for their distinct range of colors, being capable of shifting to different hues and degrees of brightness. The large number of species in the family exhibit considerable variability in their capacity to change color. For some, it is more of a shift of brightness (shades of brown); for others, a plethora of color-combinations (reds, yellows, greens, blues) can be seen. Chameleons are distinguished by their zygodactylous feet, their prehensile tail, their laterally compressed bodies, their head casques, their projectile tongues, their swaying gait, and crests or horns on their brow and snout. Chameleons' eyes are independently mobile, and because of this there are two separate, individual images that the brain is analyzing of the chameleon’s environment. When hunting prey, they ... [...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] |
Amazon River
The Amazon River (, ; es, Río Amazonas, pt, Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the disputed longest river system in the world in comparison to the Nile. The headwaters of the Apurímac River on Nevado Mismi had been considered for nearly a century as the Amazon basin's most distant source, until a 2014 study found it to be the headwaters of the Mantaro River on the Cordillera Rumi Cruz in Peru. The Mantaro and Apurímac rivers join, and with other tributaries form the Ucayali River, which in turn meets the Marañón River upstream of Iquitos, Peru, forming what countries other than Brazil consider to be the main stem of the Amazon. Brazilians call this section the Solimões River above its confluence with the Rio Negro forming what Brazilians call the Amazon at the Meeting of Waters ( pt, Encontro das Águas) at Manaus, the largest city on the river. The Amazon River has an average discharge of about – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
