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Candy Cane Tetra
''Megalamphodus bentosi'', the Bentos tetra, ornate tetra or candy cane tetra, is a species of characin fish found in sluggish tributaries of the Amazon Basin in Brazil and Peru. Occasionally, it makes its way into the aquarium trade. It has often been confused with the rosy tetra. Named in memory of a Colonel Bentos, who was a volunteer on the Thayer Expedition to Brazil (1865–1866), during which the type specimen was collected. Description The ornate tetra can grow up to . It is silvery pink, and has a dark spot around the gills, which distinguishes it from the rosy tetra. Its dorsal fin is black and has a white tip on it. Males have longer dorsal and anal fins and appear slightly larger than females. Distribution and habitat The ornate tetra lives in sluggish tributaries of the Amazon River, associated flood plain lakes. It is a benthopelagic The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and signif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marion Durbin Ellis
Marion Durbin Ellis (October 25, 1887December 16, 1972) was an American ichthyologist and entomologist. She is credited with conducting the most comprehensive study to date of the '' Hemigrammus'' genus of fish of which she named nineteen taxa. The taxon ''Corydoras ellisae'' and ''Hyphessobrycon ellisae'' (a.k.a. ''Hyphessobrycon sergipanus'') are named for her as are the species '' Bryconops durbinae'' and ''Bryconacidnus ellisi''. Early life Marion Lee Durbin was born in Los Angeles to David Henry and Cornelia (Fitch) Durbin. She graduated high school from Anderson High School in Indiana. She attended Earlham College from 1905 to 1906 and then earned her A.B. degree in 1909 from Indiana University where she was a member of Delta Gamma sorority, and Sigma Xi honorary society. She married Max Mapes Ellis in September of that year. She earned her A.M. degree from Indiana University in 1910. During her time at IU she studied under Carl H. Eigenmann and Charles Zeleny. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Characin
Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, more than 2000 different species are described, including the well-known piranha and tetras.; Buckup P.A.: "Relationships of the Characidiinae and phylogeny of characiform fishes (Teleostei: Ostariophysi)", ''Phylogeny and Classification of Neotropical Fishes'', L.R. Malabarba, R.E. Reis, R.P. Vari, Z.M. Lucena, eds. (Porto Alegre: Edipucr) 1998:123-144. Taxonomy The Characiformes form part of a series called the Otophysi within the superorder Ostariophysi. The Otophysi contain three other orders, Cypriniformes, Siluriformes, and Gymnotiformes. The Characiformes form a group known as the Characiphysi with the Siluriformes and Gymnotiformes. The order Characiformes is the sister group to the orders Siluriformes and Gymnotiformes, though this has been debated in light of recent molecular evidence. Originally, the characins were all grouped within a sing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazon Basin
The Amazon basin is the part of South America drained by the Amazon River and its tributary, 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 Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Suriname, and Venezuela, as well as the territory of French Guiana. Most of the basin is covered by the Amazon rainforest, also known as Amazon rainforest, Amazonia. With a area of dense tropical forest, it is the largest rainforest in the world. Geography The Amazon River begins in the Andes, Andes Mountains at the west of the basin with its main tributary the Marañón River and Apurímac River, Apurimac River in Peru. The highest point in the Drainage divide, watershed of the Amazon is the second biggest peak of Yerupajá at . The Amazon River Basin occupies the entire central and eastern area of South America, lying to the east of the Andes mountain range and extending from th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brazil
Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population, seventh-largest by population, with over 212 million people. The country is a federation composed of 26 Federative units of Brazil, states and a Federal District (Brazil), Federal District, which hosts the capital, Brasília. List of cities in Brazil by population, Its most populous city is São Paulo, followed by Rio de Janeiro. Brazil has the most Portuguese-speaking countries, Portuguese speakers in the world and is the only country in the Americas where Portuguese language, Portuguese is an Portuguese-speaking world, official language. Bounded by the Atlantic Ocean on the east, Brazil has a Coastline of Brazil, coastline of . Covering roughly half of South America's land area, it Borders of Brazil, borders all other countries and ter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peru
Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pacific Ocean. Peru is a Megadiverse countries, megadiverse country, with habitats ranging from the arid plains of the Pacific coastal region in the west, to the peaks of the Andes mountains extending from the north to the southeast of the country, to the tropical Amazon basin rainforest in the east with the Amazon River. Peru has Demographics of Peru, a population of over 32 million, and its capital and largest city is Lima. At , Peru is the List of countries and dependencies by area, 19th largest country in the world, and the List of South American countries by area, third largest in South America. Pre-Columbian Peru, Peruvian territory was home to Andean civilizations, several cultures during the ancient and medieval periods, and has one o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rosy Tetra
The rosy tetra (''Megalamphodus rosaceus'') is a small species of characin from the South American countries of Guyana and Suriname. It is popular in the aquarium trade. Description The rosy tetra has a light pink-white body with red fins, except the dorsal fin which can be black or white, and the caudal fin which is pink-white with two elliptical red spots on it. It has a faint black line from the top of its eyeball through the pupil, to the bottom of the eyeball. Like many other tetras, the males have longer dorsal fins than the females. Distribution In the wild, the rosy tetra lives in the Essequibo, Corantijn and Suriname River basins in South America. Reproduction The rosy tetra is an egg scattering school spawning Spawn is the Egg cell, eggs and Spermatozoa, sperm released or deposited into water by aquatic animals. As a verb, ''to spawn'' refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is ... fish in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thayer Expedition
The Thayer Expedition was an American scientific expedition to Brazil, sponsored by Boston businessman Nathaniel Thayer Jr. It was a biological and geological expedition undertaken by multiple scientists, several based at Harvard University, between April 1865 and August 1866. Scientists collected tens of thousands of specimens, some later recognized as new species. Most of the specimens collected during the expedition ended up in the collections of Harvard's Museum of Comparative Zoology, founded by Louis Agassiz, the leader of the expedition. The Thayer Expedition took place at the end of the American Civil War, with the ocean voyage from New York City to Rio de Janeiro beginning on April 2, just a week prior to Lee's surrender at Appomattox. The expedition sailed on board the ''S.S. Colorado'', owned by the Pacific Mail Steamship Company, and docked in Rio de Janeiro on April 23. They explored Brazil from the coast to the Tocantins River and along its tributaries to the bord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthopelagic
The demersal zone is the part of the sea or ocean (or deep lake) consisting of the part of the water column near to (and significantly affected by) the seabed and the benthos. The demersal zone is just above the benthic zone and forms a layer of the larger profundal zone. Being just above the ocean floor, the demersal zone is variable in depth and can be part of the photic zone where light can penetrate, and photosynthetic organisms grow, or the aphotic zone, which begins between depths of roughly and extends to the ocean depths, where no light penetrates. Fish The distinction between demersal species of fish and Pelagic fish, pelagic species is not always clear cut. The Atlantic cod (''Gadus morhua'') is a typical demersal fish, but can also be found in the open water column The (oceanic) water column is a concept used in oceanography to describe the physical (temperature, salinity, light penetration) and chemical ( pH, dissolved oxygen, nutrient salts) characteristics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megalamphodus
''Megalamphodus'' is a genus of characin native to the Neotropics. Many prominent ornamental tetras belong to this genus. Although recognized as a distinct genus early on, it was later synonymized with ''Hyphessobrycon''. More recent studies have resurrected this genus, and have found that it belongs to a different subfamily of the Acestrorhamphidae than ''Hyphessobrycon''. Taxonomy The following species are placed in this genus: * '' Megalamphodus bentosi'' ( Durbin, 1908) (ornate tetra) * '' Megalamphodus copelandi'' (Durbin, 1908) * '' Megalamphodus epicharis'' (S. H. Weitzman & L. F. Palmer, 1997) * '' Megalamphodus eques'' (Steindachner, 1882) (jewel tetra) * '' Megalamphodus erythrostigma'' ( Fowler, 1943) (bleeding-heart tetra) * '' Megalamphodus haraldschultzi'' ( Travassos, 1960) * '' Megalamphodus khardinae'' (Zarske, 2008) * '' Megalamphodus megalopterus'' C. H. Eigenmann, 1915 (black-phantom tetra) * '' Megalamphodus micropterus'' C. H. Eigenmann, 1915 * '' Megal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Marion Durbin Ellis
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion, especially in the context of rank-based (" Linnaean") nomenclature (much less so under phylogenetic nomenclature). If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were presumably set forth in prehistoric times by hunter-gatherers, as suggested by the fairly sophisticated folk taxonomies. Much later, Aristotle, and later still ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1908
A fish (: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits. Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians. In a break to the long tradition of grouping all fish into a single class (Pisces), modern phylogenetics views fish as a paraphyletic group. Most fish are cold-blooded, their body temperature varying with the surrounding water, though some large active swimmers like white shark and tuna can hold a higher core temperature. Many fish can communicate acoustically with each other, such as during courtship displays. The study of fish is known as ichthyology. The earliest fish appeared during the Cambrian as small filter feeders; they continued to evolve through the Paleozoic, diversifying into many forms. The earliest fish wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetras Of Brazil
Tetra is the common name of many small freshwater characiform fishes. Tetras come from Africa, Central America, and South America, belonging to the biological families Characidae, Alestidae (the "African tetras"), Lepidarchidae, Lebiasinidae, Acestrorhynchidae, Stevardiidae, and Acestrorhamphidae. In the past, all of these families were placed in the Characidae. The Characidae and their allies are distinguished from other fish by the presence of a small adipose fin between the dorsal and caudal fins. Many of these, such as the neon tetra (''Paracheirodon innesi''), are brightly colored and easy to keep in captivity. Consequently, they are extremely popular for home aquaria. ''Tetra'' is no longer a taxonomic, phylogenetic term. It is short for ''Tetragonopterus'', a genus name formerly applied to many of these fish, which is Greek for "square-finned" (literally, four-sided-wing). Because of the popularity of tetras in the fishkeeping hobby, many unrelated fish are comm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
