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Pseudoqolus Koko
''Pseudoqolus koko'' is a species of catfish in the family Loricariidae and the only species in the genus ''Pseudoqolus''. It is a freshwater fish native to South America, where it occurs in the Maroni basin. It is usually found on or near stony substrates in the main river channel at a depth of around 2 m (6.6 ft). The species has been collected alongside multiple other loricariid species, including ''Hemiancistrus medians'', ''Peckoltia otali'', ''Pseudancistrus barbatus'', ''Harttia guianensis'', ''Loricaria cataphracta'', and ''Rineloricaria stewarti''. It is noted that the gut contents of one specimen of this species contained primarily spicules and sponge fragments, indicating that it may feed on freshwater sponges. The species reaches 9 cm (3.5 inches) SL. ''Pseudoqolus koko'' was originally described as a member of the genus ''Panaqolus'' (a genus which is sometimes thought to be a subgenus of ''Panaque'') in 2012, although it was reclassified as a member of the mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rineloricaria Stewarti
''Rineloricaria stewarti'', sometimes known as Stewart's whiptail catfish, is a species of catfish in the family Loricariidae. It is native to South America, where it occurs in the coastal rivers of the Guianas, being known from French Guiana, Guyana, and Suriname. It is typically seen in moderately sunlit forest creeks with a depth of 10 to 60 cm (3.9 to 23.6 inches), clear, fast-moving water, and a substrate composed of rocks and sand. It is known to occur alongside the species '' Corydoras guianensis'' and ''Moenkhausia oligolepis'', as well as members of the genus ''Phenacogaster''. Mature male individuals of ''Rineloricaria stewarti'' are known to develop odontodes on both sides of the head and towards the back of the interorbitals. The species reaches 10 cm (3.9 inches) in standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish Of South America
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, ''Vandellia cirrhosa''. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus ''Corydoras'', are important in the aquarium hobby. Many catfish are nocturnal, [...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] |
Monotypic Taxon
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panaque
The genus ''Panaque'' contains a small number of small to medium-sized South American suckermouth armoured catfishes that are notable for being among the very few vertebrates that feed extensively on wood. In addition, algae and aufwuchs are an important part of the diet, and they use their rasping teeth to scrape this from rocks. These fish are also popular aquarium fish, where the sound of scraping as these fish forage for food is easily audible. Taxonomy '' Scobinancistrus'' and '' Panaqolus'' are sometimes considered to be subgenera of this genus. Species There are currently seven recognized species in this genus: * '' Panaque armbrusteri'' * '' Panaque bathyphilus'' * '' Panaque cochliodon'' * ''Panaque nigrolineatus'' (Royal panaque) * '' Panaque schaeferi'' * '' Panaque suttonorum'' (Blue-eye panaque) * '' Panaque titan'' Etymology The name ''Panaque'' is a Latinisation of a native Venezuelan name for these fish. It is pronounced "pan ack" in Britain and Europe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panaqolus
''Panaqolus'' is a genus of small catfish in the family Loricariidae native to rivers in tropical South America. Its members were formerly thought to belong to a clade of small-sized species in the genus ''Panaque'', until this genus was separated from ''Panaque'' in 2001. At times it has been considered a subgenus of ''Panaque'', and the validity of the genus has been disputed by various authors and sources. '' Pseudoqolus koko'' was formerly considered to be a member of this genus, although it was reclassified as a member of the currently monotypic genus ''Pseudoqolus'' by Nathan K. Lujan, Christian A. Cramer, Raphael Covain, Sonia Fisch-Muller, and Hernán López-Fernández following a 2017 molecular phylogenetic analysis.Lujan, N. K., Cramer, C. A., Covain, R., Fisch-Muller, S., & López-Fernández, H. (2017). Multilocus molecular phylogeny of the ornamental wood-eating catfishes (Siluriformes, Loricariidae, Panaqolus and Panaque) reveals undescribed diversity and parapatric cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponge
Sponges, the members of the phylum Porifera (; meaning 'pore bearer'), are a basal animal clade as a sister of the diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells. Sponges have unspecialized cells that can transform into other types and that often migrate between the main cell layers and the mesohyl in the process. Sponges do not have nervous, digestive or circulatory systems. Instead, most rely on maintaining a constant water flow through their bodies to obtain food and oxygen and to remove wastes. Sponges were first to branch off the evolutionary tree from the last common ancestor of all animals, making them the sister group of all other animals. Etymology The term ''sponge'' derives from the Ancient Greek word ( 'sponge'). Overview Sponges are similar to other animals in that they are multicellular, he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sponge Spicule
Spicules are structural elements found in most sponges. The meshing of many spicules serves as the sponge's skeleton and thus it provides structural support and potentially defense against predators. Sponge spicules are made of calcium carbonate or silica. Large spicules visible to the naked eye are referred to as megascleres, while smaller, microscopic ones are termed microscleres. The composition, size, and shape of spicules are major characters in sponge systematics and taxonomy. Overview Sponges are a species-rich clade of the earliest-diverging (most basal) animals. They are distributed globally, with diverse ecologies and functions, and a record spanning at least the entire Phanerozoic. Most sponges produce skeletons formed by spicules, structural elements that develop in a wide variety of sizes and three dimensional shapes. Among the four sub-clades of Porifera, three (Demospongiae, Hexactinellida, and Homoscleromorpha) produce skeletons of amorphous silica and on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loricaria Cataphracta
''Loricaria cataphracta'', sometimes known as the chocolate loricariid, is a species of catfish in the genus ''Loricaria'' and the family Loricariidae. It is native to South America, where it occurs in the Amazon River basin, as well as coastal rivers in the Guianas. It is known from Brazil, French Guiana, Guyana, Suriname, and Venezuela, where it is often seen in ponds A pond is an area filled with water, either natural or artificial, that is smaller than a lake. Defining them to be less than in area, less than deep, and with less than 30% emergent vegetation helps in distinguishing their ecology from t .... The species reaches 29.5 cm (11.6 inches) in standard length and is believed to be a facultative air-breather. References Loricariini Taxa named by Carl Linnaeus Fish described in 1758 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, ''Vandellia cirrhosa''. Neither the armour-plated types nor the naked types have scales. Despite their name, not all catfish have prominent barbels or "whiskers". Members of the Siluriformes order are defined by features of the skull and swimbladder. Catfish are of considerable commercial importance; many of the larger species are farmed or fished for food. Many of the smaller species, particularly the genus ''Corydoras'', are important in the aquarium hobby. Many catfish are nocturnal, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harttia Guianensis
''Harttia guianensis'' is a species of armored catfish endemic to French Guiana where it is found in the Sinnamary and Approuague River The Approuague river (or Apuruaque in Tupi) is a major river in French Guiana. It is long. It runs north from the Tumuk Humak Mountains to the Atlantic Ocean, almost parallel with the Oyapock, with its mouth by the Pointe Béhague cape. The A ... basins. This species grows to a length of SL. References guianensis Catfish of South America Fish of French Guiana Endemic fauna of French Guiana Taxa named by Lúcia Helena Rapp Py-Daniel Taxa named by Edinbergh Caldas de Oliveira Fish described in 2001 {{Loricariidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
