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Cetopsidae
The Cetopsidae are a small family of catfishes (order Siluriformes), commonly called the whale catfishes. Taxonomy This family contains five genera divided into two subfamilies, Cetopsinae and Helogeneinae. Helogeneinae was previously a family-level group, but now it has been reclassified as a subfamily of Cetopsidae. This subfamily contains four species in the genus ''Helogenes''. The subfamily Cetopsinae contains four genera. ''Cetopsidium'' contains six species, ''Cetopsis'' contains 21 species, ''Denticetopsis'' contains seven species, and ''Paracetopsis'' contains three species; this makes a total of 37 cetopsines. The genera have been changed as recently as 2005 with the genera ''Bathycetopsis'', ''Hemicetopsis'', and ''Pseudocetopsis'' set in synonymy with ''Cetopsis'' and the description of the new genus ''Cetopsidium''. ''Cetopsidium'' is the sister group to the rest of Cetopsinae. ''Denticetopsis'' forms the next sister group to the remaining cetopsine genera. The tribe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetopsis
''Cetopsis'' is a genus of catfishes ( order Siluriformes) of the family Cetopsidae. Taxonomy ''Cetopsis'' is one of four genera in the subfamily Cetopsinae within the family Cetopsidae. ''Cetopsis'' is greatly expanded from when it only included ''C. coecutiens''. A number of genera were synonymized with ''Cetopsis'' to retain monophyly of cetopsine genera without erecting many new ones. Information on some species is limited due to lack of specimens. ''C. caiapo'', ''C. jurubidae'', ''C. sarcodes'', and ''C. umbrosa'' are only known from a single specimen each, ''C. starnesi'' is only known from two specimens, ''C. parma'' is only known from four, and ''C. sandrae'' from only six specimens. Distribution ''Cetopsis'' species are found in major freshwater rivers draining to the east and west of South America, including the Amazon, Atrato, Madeira, Magdalena, Orinoco, Tocantins, and other rivers in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela. Description ''Cetopsis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helogenes
''Helogenes'' is a genus of whale catfish found in tropical South America. Helogeneinae is the sister taxon of Cetopsinae, the other subfamily in the family Cetopsidae. Species There are currently four recognized species in this genus: * '' Helogenes castaneus'' ( Dahl, 1960) * '' Helogenes gouldingi'' Vari & H. Ortega, 1986 * '' Helogenes marmoratus'' Günther, 1863 * '' Helogenes uruyensis'' Fernández-Yépez, 1967 Distribution ''Helogenes'' species occur through much of the Amazon River basin, the southern portions of the Orinoco River basin, the coastal rivers of the Guianas, and at least the lower portions of the Tocantins River. Description In ''Helogenes'', the dorsal fin base is short, the anal fin base is elongate, the dorsal and pectoral fins lack spines, the adipose fin is usually present, but is reduced or absent in one population of one species. ''Helogenes'' species grow to about 4.3–7.3 centimetres (1.7–2.9 in) SL. Ecology ''Helogen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cetopsidium
''Cetopsidium'' is a genus of catfishes (order Siluriformes) of the family Cetopsidae. Taxonomy ''Cetopsidium'' was described in 2005, its name coming from the ''Cetopsis'', the first described cetopsid genus, and ''idium'' which means diminutive, in reference to the relatively small size of ''Cetopsidium'' species. Three existing species were transferred to this genus and three new species were described. In 2009 a new species, ''Cetopsidium soniae'', was described bringing the number of species in the genus to seven. Species There are currently seven recognized species in this genus: * '' Cetopsidium ferreirai'' Vari, Ferraris & de Pinna, 2005 * '' Cetopsidium minutum'' ( C. H. Eigenmann, 1912) * '' Cetopsidium morenoi'' ( Fernández-Yépez, 1972) * '' Cetopsidium orientale'' (Vari, Ferraris & Keith, 2003) * '' Cetopsidium pemon'' Vari, Ferraris & de Pinna, 2005 * '' Cetopsidium roae'' Vari, Ferraris & de Pinna, 2005 * '' Cetopsidium soniae'' Vari & Ferraris, 2009 Distribu ... [...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] |
Denticetopsis
''Denticetopsis'' is a genus of catfishes (order Siluriformes) of the family Cetopsidae. Taxonomy Originally ''Denticetopsis'' as described by Ferraris in 1996 was restricted to two species, ''D. royeroi'' and ''D. sauli''. These two species have proved to be a subunit of a larger clade that also includes two species previously assigned to the now invalid genus ''Pseudocetopsis'' (''D. macilenta'', ''D. praecox''), together with three species described as new in 2005 (''D. epa'', ''D. iwokrama'', ''D. seducta''). Species There are currently seven recognized species in this genus: * '' Denticetopsis epa'' Vari, Ferraris & de Pinna, 2005 * '' Denticetopsis iwokrama'' Vari, Ferraris & de Pinna, 2005 * '' Denticetopsis macilenta'' ( C. H. Eigenmann, 1912) * '' Denticetopsis praecox'' (Ferraris & B. A. Brown, 1991) * '' Denticetopsis royeroi'' Ferraris, 1996 * ''Denticetopsis sauli'' Ferraris, 1996 * '' Denticetopsis seducta'' Vari, Ferraris & de Pinna, 2005 Distribution ''Dentice ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paracetopsis
''Paracetopsis'' is a genus of whale catfishes found in tropical South America. Species There are currently three recognized species in this genus: * '' Paracetopsis atahualpa'' Vari, Ferraris & de Pinna, 2005 * '' Paracetopsis bleekeri'' Bleeker, 1862 * '' Paracetopsis esmeraldas'' Vari, Ferraris & de Pinna, 2005 Distribution ''Paracetopsis'' species are known from river drainages of the Pacific coast of Peru and Ecuador. Description ''Paracetopsis'' species can be distinguished from species of all other genera in the Cetopsinae by the combination of the possession of a vomerine tooth patch with two or more rows of teeth and a medial gap between the contralateral components of the tooth patch. Like in other species of cetopsines, mature males have elongated distal filaments of the dorsal and pectoral fin rays and a convex (instead of straight) margin to the anal fin. The body is relatively elongate; anteriorly the body is not compressed much, but becomes progressively compre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pieter Bleeker
Pieter Bleeker (10 July 1819 – 24 January 1878) was a Dutch medical doctor, ichthyologist, and herpetologist. He was famous for the ''Atlas Ichthyologique des Indes Orientales Néêrlandaises'', his monumental work on the fishes of East Asia published between 1862 and 1877. Life and work Bleeker was born on 10 July 1819 in Zaandam. He was employed as a medical officer in the Royal Netherlands East Indies Army from 1842 to 1860, (in French). stationed in the Dutch East Indies (now Indonesia). During that time, he did most of his ichthyology work, besides his duties in the army. He acquired many of his specimens from local fishermen, but he also built up an extended network of contacts who would send him specimens from various government outposts throughout the islands. During his time in Indonesia, he collected well over 12,000 specimens, many of which currently reside at the Naturalis Biodiversity Center in Leiden. Bleeker corresponded with Auguste Duméril of Paris. His wor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Maracaibo
Lake Maracaibo (Spanish: Lago de Maracaibo; Anu: Coquivacoa) is a lagoon in northwestern Venezuela, the largest lake in South America and one of the oldest on Earth, formed 36 million years ago in the Andes Mountains. The fault in the northern section has collapsed and is rich in oil and gas resources. It is Venezuela's main oil producing area and an important fishing and agricultural producing area. It is inhabited by a quarter of the country's population and is also the place with the most frequent lightning on earth. The famous Catatumbo lightning can illuminate nighttime navigation, and eutrophication caused by oil pollution is a major environmental problem facing the lake. Geography Lake Maracaibo is located in the Maracaibo lowland in the faulted basin between the Perija Mountains and the Merida Mountains of the Eastern Cordillera Mountains in northwestern Venezuela. The lake is in the shape of a vase. It is 210 kilometers long from north to south, 121 kilometers wide from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peru
, image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Firm and Happy for the Union" , national_anthem = "National Anthem of Peru" , march = "March of Flags" , image_map = PER orthographic.svg , map_caption = , image_map2 = , capital = Lima , coordinates = , largest_city = capital , official_languages = Peruvian Spanish, Spanish , languages_type = Co-official languages , languages = , ethnic_groups = , ethnic_groups_year = 2017 , demonym = Peruvians, Peruvian , government_type = Unitary state, Unitary Semi-presidential system, semi-presidential republic , leader_title1 = President of Peru, President ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caribbean
The Caribbean (, ) ( es, El Caribe; french: la Caraïbe; ht, Karayib; nl, De Caraïben) is a region of the Americas that consists of the Caribbean Sea, its islands (some surrounded by the Caribbean Sea and some bordering both the Caribbean Sea and the North Atlantic Ocean) and the surrounding coasts. The region is southeast of the Gulf of Mexico and the North American mainland, east of Central America, and north of South America. Situated largely on the Caribbean Plate, the region has more than 700 islands, islets, reefs and cays (see the list of Caribbean islands). Island arcs delineate the eastern and northern edges of the Caribbean Sea: The Greater Antilles and the Lucayan Archipelago on the north and the Lesser Antilles and the on the south and east (which includes the Leeward Antilles). They form the West Indies with the nearby Lucayan Archipelago (the Bahamas and Turks and Caicos Islands), which are considered to be part of the Caribbean despite not bordering the Caribbe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinú River
Sinú River (), is a river in northwestern Colombia that flows mostly through the Córdoba Department and into the Caribbean. The river is the third most important river after the Magdalena River and the Cauca River in the Caribbean Region. It is born in the Antioquia Department, flowing south to north for until flowing into the Caribbean Sea. The river is navigable for only half of its length, starting in Montería, the largest city in its basin. Also, this river is the main tourist attraction of Montería decorated with the first avenue when it passes by Montería. Ecology The river flows through the Sinú Valley dry forests ecoregion. In general, the aquatic fauna shows connections with the Magdalena–Cauca River basin, but also the Atrato River basin. There has been extensive habitat destruction in the region, causing problems to many species in the area. Two parrots that are endemic to the river valley, the Sinú brown-throated parakeet (''Aratinga pertinax griseipect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aroa River (Venezuela)
The Aroa River ( es, Río Aroa) is a river in northwestern Venezuela. It runs parallel and west of the Yaracuy River. The Aroa River empties into the Caribbean Sea. The river drains part of the Lara-Falcón dry forests ecoregion. In the 16th century it was known that there was gold in the Yaracuy, Santa Cruz and Aroa rivers, and in 1605 gold deposits were found in a small valley leading to the Aroa River. The king gave the Aroa mines in perpetuity to Dr. Francisco Marín de Narváez and his heirs in exchange for 40,000 pesos. In 1824 the mines were leased to British entrepreneurs who exploited deposits of copper. They used the Aroa River to carry the ore by barge to the coast, where it was loaded onto ships. The town of Aroa ''Aroa'' is a genus of moths in the subfamily Lymantriinae first described by Francis Walker (entomologist), Francis Walker in 1855. Species are distributed in South Africa, China, throughout India, Sri Lanka, Myanmar, and Java. Description They ... was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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