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Pencil Catfish
Trichomycteridae is a family of catfishes commonly known as pencil catfishes or parasitic catfishes. This family includes the candiru fish (''Vandellia cirrhosa''), feared by some people for its alleged habit of entering into the urethra of humans. They are one of the few parasitic chordates. Another species is the life monsefuano (''Trichomycterus punctulatus'') which was important to the Moche culture and still an important part of Peruvian cuisine.FondazioneslowfoodLife monsefuano.Retrieved 28 April 2017. This family is prohibited from being imported into various parts of the United States. Taxonomy The Trichomycteridae comprise about 42 genera and 286 species described. It is the second-most diverse family of the superfamily Loricarioidea. Numerous species still remain undescribed. The monophyly of Trichomycteridae is well-supported. The family is divided into eight subfamilies. The only subfamily that is not monophyletic is the largest one, Trichomycterinae. A large cla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vandellia
''Vandellia'' is a genus of catfishes native to South America. The species in this genus are the most well-known of the parasitic catfishes also known as candiru, known for their alleged habit of entering the human urethra. Species There are currently three recognized species in this genus: * '' Vandellia beccarii'' di Caporiacco, 1935 * '' Vandellia cirrhosa'' Valenciennes, 1846 (Candiru) * '' Vandellia sanguinea'' Eigenmann, 1917 Distribution ''V. beccarii'' originates from the Orinoco River basin and rivers of The Guianas. ''V. cirrhosa'' is distributed in the Amazon Basin. ''V. sanguinea'' inhabits the Amazon, Orinoco, and Essequibo River basins. Description ''V. beccarii'' can be distinguished from other vandelliines by its square or slightly emarginate caudal fin and the colour pattern of two dark bands extending from the dorsal fin and the anal fin and converging onto the caudal fin. ''V. sanguinea'' may grow to 5.3 centimetres (2.1 in) SL. ''V. cirrhosa'' g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moche Culture
The Moche civilization (; alternatively, the Mochica culture or the Early, Pre- or Proto-Chimú) flourished in northern Peru with its capital near present-day Moche, Trujillo, Peru from about 100 to 700 AD during the Regional Development Epoch. While this issue is the subject of some debate, many scholars contend that the Moche were not politically organized as a monolithic empire or state. Rather, they were likely a group of autonomous polities that shared a common culture, as seen in the rich iconography and monumental architecture that survives today. Background Moche society was agriculturally based, with a significant level of investment in the construction of a sophisticated network of irrigation canals for the diversion of river water to supply their crops. Their artifacts express their lives, with detailed scenes of hunting, fishing, fighting, sacrifice, sexual encounters, and elaborate ceremonies. The Moche are particularly noted for their elaborately painted ceramics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaphyropoma
''Glaphyropoma'' is a genus of small pencil catfishes native to Bahia in Brazil. Species There are currently two recognized species in this genus: * '' Glaphyropoma rodriguesi'' de Pinna, 1992 * '' Glaphyropoma spinosum'' Bichuette, de Pinna & Trajano, 2008 The single synapomorphy proposed for ''Glaphyropoma'' is the marked narrowing of the first hypobranchial, giving the hypobranchial a slender shape. ''G. rodriguesi'' grows to about 5.1 centimetres (2.0 in) in standard length and originates from the Mucujê River, a tributary of Paraguaçu River in Brazil. ''G. spinosum'' is known to grow as large as 5.8 cm (2.3 in) in standard length. It is known from subterranean waters in the Diamantina Plateau of the Bahia State in central northeastern Brazil. This is the first-known troglomorphic species in the subfamily Copionodontinae. These fish live in quartzitic caves formed by erosion Erosion is the action of surface processes (such as water flow or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copionodon
''Copionodon'' is a genus of catfishes (order Siluriformes) of the family Trichomycteridae. It includes three species, ''C. lianae'', ''C. orthiocarinatus'', and ''C. pecten''. Species There are currently three recognized species in this genus: * '' Copionodon lianae'' Campanario & de Pinna, 2000 * '' Copionodon orthiocarinatus'' de Pinna, 1992 * '' Copionodon pecten'' de Pinna, 1992 Distribution ''C. orthiocarinatus'' and ''C. pecten'' originate from the Mucujê River, a tributary of Paraguaçu River in Bahia, 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 .... ''C. lianae'' originates from the Grisante River, a tributary of the Mucujê River. Description ''Copionodon'' species grow to about SL. References Trichomycteridae Fish of South America Fauna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cladistics
Cladistics (; ) is an approach to biological classification in which organisms are categorized in groups (" clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics ( synapomorphies'')'' that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms ''worms'' or ''fishes'' were used within a ''strict'' cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade', which are fruitless to precisely delineate, especially when including extinct species. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scleronema (fish)
''Scleronema'' is a genus of pencil catfishes native to South America. They are a member of the subfamily Trichomycterinae. Species of Scleronema are geographically distributed in the La Plata basin and Atlantic coastal drainages from Southern Brazil, Southern Paraguay, Northeastern Argentina and Uruguay. They inhabit rivers or streams with sand or gravel-bottoms across the Pampa grasslands. In Greek, Scleronema means "hard filament." Species There are currently three recognized species in this genus: * '' Scleronema angustirostre'' ( Devincenzi, 1942) * '' Scleronema minutum'' (Boulenger, 1891) * '' Scleronema operculatum'' C. H. Eigenmann, 1917 ''S. minutum'' and ''S. operculatum'' both originate from Rio Grande do Sul, 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 .. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ituglanis
''Ituglanis'' is a genus of small freshwater fish in the family Trichomycteridae native to South America. Their greatest diversity seems to occur in the Amazon River basin.Datovo, A. & Landim, M.I. (2005)''Ituglanis macunaima'', a new catfish from the rio Araguaia basin, Brazil (Siluriformes: Trichomycteridae).''Neotropical Ichthyology, 3 (4): 455–464.'' Most species inhabit leaf litter, with several species living in caves. This genus was first erected for nine species previously classified in ''Trichomycterus''.Sarmento-Soares, L.M., Martins-Pinheiro, R.F., Aranda, A.T. & Chamon, C.C. (2006)''Ituglanis cahyensis'', a new catfish from Bahia, Brazil (Siluriformes: Trichomycteridae).''Neotropical Ichthyology, 4 (3): 309-318.'' ''Ituglanis'' is believed to be a monophyletic group. There may be two monophyletic groups within this genus. ''Ituglanis'' is currently considered a member of the subfamily Trichomycterinae though its position as a member of any of the current subfamilies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clade
A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, the equivalent Latin term ''cladus'' (plural ''cladi'') is often used in taxonomical literature. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are nested, one in another, as each branch in turn splits into smaller branches. These splits reflect evolutionary history as populations diverged and evolved independently. Clades are termed monophyletic (Greek: "one clan") groups. Over the last few decades, the cladistic approach has revolutionized biological classification and revealed surprising evolutionary relationships among organisms. Increasingly, taxonomists try to avoid naming taxa that are not clades; that is, taxa that are not monophyletic. Some of the relationships between organisms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Copeia
''Ichthyology & Herpetology'' (formerly ''Copeia'') is a quarterly peer-reviewed scientific journal covering research in ichthyology and herpetology that was originally named after Edward Drinker Cope, a prominent American researcher in these fields. It is the official journal of the American Society of Ichthyologists and Herpetologists. According to the ''Journal Citation Reports'', ''Copeia'' has a 2021 impact factor of 1.857, ranking it 65th out of 176 journals in the category "Zoology". History On December 27, 1913, John Treadwell Nichols published the first issue of ''Copeia''. This issue consisted of a single piece of paper folded to form four pages of information with five articles. The cover of the pamphlet bore the inscription: "Published by the contributors to advance the science of coldblooded vertebrates." In 2020, the American Society of Ichthyologists and Herpetologists voted to rename the journal, Ichthyology & Herpetology. Name change The journal was na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic groups are typically characterised by shared derived characteristics ( synapomorphies), which distinguish organisms in the clade from other organisms. An equivalent term is holophyly. The word "mono-phyly" means "one-tribe" in Greek. Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic group'' consists of all of the descendants of a common ancestor minus one or more monophyletic groups. A '' polyphyletic group'' is characterized by convergent features or habits of scientific interest (for example, night-active primates, fruit trees, aquatic insects). The features by which a polyphyletic group is differentiated from others are not inherited from a common ancestor. These definitions have taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Loricarioidea
Loricarioidea is a superfamily 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 is traditionally 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. Loricarioidea is currently diagnosed by the derived presence of a reduced gas bladder, encapsulated in expansions of the parapophysis of the first vertebrae, and of odontodes, small dermal de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zootaxa
''Zootaxa'' is a peer-reviewed scientific mega journal for animal taxonomists. It is published by Magnolia Press (Auckland, New Zealand). The journal was established by Zhi-Qiang Zhang in 2001 and new issues are published multiple times a week. From 2001 to 2020, more than 60,000 new species have been described in the journal accounting for around 25% of all new taxa indexed in The Zoological Record in the last few years. Print and online versions are available. Temporary suspension from JCR The journal exhibited high levels of self-citation and its journal impact factor of 2019 was suspended from ''Journal Citation Reports'' in 2020, a sanction which hit 34 journals in total. Biologist Ross Mounce noted that high levels of self-citation may be inevitable for a journal which publishes a large share of new species classification. Later that year this decision was reversed and it was admitted that levels of self-citation are appropriate considering the large proportion of papers f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
