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Callichthyid
Callichthyidae is a family of catfishes (order Siluriformes), called armored catfishes due to the two rows of bony plates (or scutes) along the lengths of their bodies. It contains some of the most popular freshwater aquarium fish, such as many species in the genus ''Corydoras''. Taxonomy The family derives its name from the Greek words (, 'beautiful') and (, 'fish'). Callichthyidae is one of six families in the superfamily Loricarioidea, and is sister to a clade formed by Scoloplacidae, Astroblepidae, and Loricariidae. Within the family Callichthyidae, the two subfamilies have eight genera and about 177 species, accounting for about 7% of all catfish. Most of these species are in the genus ''Corydoras'', the largest catfish genus. The subfamily Corydoradinae includes about 90% of the species in the family Callichthyidae and is one of the most diverse siluriform assemblages in the Neotropics, with about 170 valid species. It includes two tribes, Aspidoradini and Corydoradini. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corydoras
''Corydoras'' is a genus of freshwater catfish in the family Callichthyidae and subfamily Corydoradinae. The species usually have more restricted areas of endemism than other callichthyids, but the area of distribution of the entire genus almost equals the area of distribution of the family, except for Panama where ''Corydoras'' is not present. ''Corydoras'' species are distributed in South America where they can be found from the east of the Andes to the Atlantic coast, from Trinidad to the Río de la Plata drainage in northern Argentina. Species assigned to ''Corydoras'' display a broad diversity of body shapes and coloration. ''Corydoras'' are small fish, ranging from in SL., and are protected from predators by their body armor and by their sharp, typically venomous spines. Taxonomy The name ''Corydoras'' is derived from the Greek ''kory'' (helmet) and ''doras'' (skin). ''Corydoras'' is by far the largest genus of Neotropical fishes with more than 160 species. It is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteogaster
''Corydoras'' is a genus of freshwater catfish in the family Callichthyidae and subfamily Corydoradinae. The species usually have more restricted areas of endemism than other callichthyids, but the area of distribution of the entire genus almost equals the area of distribution of the family, except for Panama where ''Corydoras'' is not present. ''Corydoras'' species are distributed in South America where they can be found from the east of the Andes to the Atlantic coast, from Trinidad to the Río de la Plata drainage in northern Argentina. Species assigned to ''Corydoras'' display a broad diversity of body shapes and coloration. ''Corydoras'' are small fish, ranging from in SL., and are protected from predators by their body armor and by their sharp, typically venomous spines. Taxonomy The name ''Corydoras'' is derived from the Greek ''kory'' (helmet) and ''doras'' (skin). ''Corydoras'' is by far the largest genus of Neotropical fishes with more than 160 species. It is the so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidoras
''Aspidoras'' is a genus of catfishes of the family Callichthyidae from Brazil. Taxonomy The type species for this genus is '' Aspidoras rochai''. The name ''Aspidoras'' is derived from the Greek ''aspis'' (shield) and ''dora'' (skin). ''Aspidoras'' is easily distinguished from the other genera of the subfamily Corydoradinae by the presence of a supraoccipital fontanel; this character is an autapomorphy for the genus. Many of the species of ''Aspidoras'' are similar and often hard to distinguish. Without specimens, it is often very difficult to positively identify a species from photographs alone. They are all small species. ''A. taurus'' is exceptional in that it just surpasses 5 cm in length. The monophyly of the genus has been demonstrated. Species There are currently 18 recognized species in this genus: * '' Aspidoras albater'' Nijssen & Isbrücker, 1976 (False macropterus) * ''Aspidoras aldebaran'' Tencatt, M. R. Britto, Isbrücker & Pavanelli, 2022 * ''Aspido ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loricarioidea
Loricarioidei is a suborder of catfishes ( order Siluriformes). It contains the six families Trichomycteridae, Nematogenyiidae, Callichthyidae, Scoloplacidae, Astroblepidae, and Loricariidae. Some schemes also include Amphiliidae. This superfamily, including Amphiliidae, includes about 156 genera and 1,187 species. Taxonomy Loricarioidea was previously considered a part of Siluroidei, a clade of all catfishes excluding Diplomystidae. In Nelson, 2006, this grouping is sister to the superfamily Sisoroidea. However, in a recent molecular analysis, it was determined that the suborder Loricarioidei (not including Amphiliidae) is sister to a group including Diplomystidae and Siluroidei. Amphiliidae, in this analysis, was found to be much more closely related to Mochokidae or Malapteruridae. It is disputed whether Loricarioidea or Diplomystidae are the most basal group of catfish, with molecular studies favoring the former while morphological studies favor the latter. The ear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catfish
Catfish (or catfishes; order (biology), order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are common name, named for their prominent barbel (anatomy), barbels, which resemble a cat's whiskers, though not all catfish have prominent barbels or "whiskers", with some seemingly not having them. Siluriformes as a whole are Fish scale, scale-less, with neither the Armoured catfish, armour-plated nor the naked species having scales. This order of fish are Autapomorphy, defined by features of the skull and swimbladder. Catfish range in size and behavior from the three List of largest fish, largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivorous and scavenging bottom feeders, down to tiny ectoparasitic species known as the Candiru (fish), candirus. In the Southern United States, catfish species may be known by a variety of slang names, such as "mud cat", " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siluriformes
Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Catfish are named for their prominent barbels, which resemble a cat's whiskers, though not all catfish have prominent barbels or "whiskers", with some seemingly not having them. Siluriformes as a whole are scale-less, with neither the armour-plated nor the naked species having scales. This order of fish are defined by features of the skull and swimbladder. 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 detritivorous and scavenging bottom feeders, down to tiny ectoparasitic species known as the candirus. In the Southern United States, catfish species may be known by a variety of slang names, such as "mud cat", "polliwogs", or "chuckleheads". These nicknames are not standardized, so one area may call a bullhead catfish by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Callichthys
''Callichthys'' is a small genus of freshwater catfish in the Callichthyinae subfamily of the armored catfish family, and consists of 4 species from South America. The genus ''Callichthys'' is distributed in most freshwater drainages of South America. Taxonomy The type species for this genus is '' Callichtys callichthys''. The name ''Callichthys'' is derived from the Greek ''kallos'' (beautiful) and ''ichthys'' (fish). 3 of the 4 species were described only relatively recently. The genus ''Callichthys'' is in need of taxonomic work, as it includes 13 nominal species but specimens of this genus are usually referred to as ''C. callichthys'' regardless of collecting locality. According to a 1997 paper, ''Callichthys'' is the most basal member of the subfamily. In a 2004 study, different relationships among the callichthyines were found: ''Dianema'' and ''Hoplosternum'' form the most basal clade, and ''Callichthys'' is sister to ''Lepthoplosternum'' and ''Megalechis''. Species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
