Lonchurus Elegans
''Lonchurus elegans'', the blackfin croaker, is a species of marine ray-finned fish belonging to the family Sciaenidae, the drums and croakers. This species is found in the Western Atlantic, from Colombia to Brazil. This species reaches a length of See also * List of data deficient fishes As of September 2016, the International Union for Conservation of Nature (IUCN) lists 3191 data deficient fish species. 21% of all evaluated fish species are listed as data deficient. The IUCN also lists 12 fish subspecies as data deficient. Of ... References * Chao, L.N., 1978. Sciaenidae. In W. Fischer (ed.) FAO species identification sheets for fishery purposes. West Atlantic (Fishing Area 31). Volume 4. FAO, Rome. External links ''Lonchurus elegans''at FishBase elegans Taxa named by Marinus Boeseman Fish described in 1948 {{Perciformes-stub ...
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Marinus Boeseman
Marinus may refer to: *Marinus (crater), a crater on the Moon *Marinus (given name), for people named Marinus *Dr. Marinus, a recurring character in the novels of David Mitchell See also *''The Keys of Marinus ''The Keys of Marinus'' is the fifth serial in the British science fiction television series '' Doctor Who'', which was first broadcast on BBC TV/BBC1 in six weekly parts from 11 April to 16 May 1964. Written by Terry Nation and directed by Joh ...

Ray-finned Fish
Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they constitute nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from ''Paedocypris'', at , to the massive ocean sunfish, at , and the long-bodied oarfish, at . The vast majority of Actinoptery ...
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Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ...
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Sciaenidae
Sciaenidae are a family of fish in the order Acanthuriformes. They are commonly called drums or croakers in reference to the repetitive throbbing or drumming sounds they make. The family consists of about 286 to 298 species in about 66 to 70 genera. Characteristics A sciaenid has a long dorsal fin reaching nearly to the tail, and a notch between the rays and spines of the dorsal, although the two parts are actually separate. Drums are somberly coloured, usually in shades of brown, with a lateral line on each side that extends to the tip of the caudal fin. The anal fin usually has two spines, while the dorsal fins are deeply notched or separate. Most species have a rounded or pointed caudal fin. The mouth is set low and is usually inferior. Their croaking mechanism involves the beating of abdominal muscles against the swim bladder. Sciaenids are found worldwide, in both fresh and salt water, and are typically benthic carnivores, feeding on invertebrates and smaller fish. The ...
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List Of Data Deficient Fishes
As of September 2016, the International Union for Conservation of Nature (IUCN) lists 3191 data deficient fish species. 21% of all evaluated fish species are listed as data deficient. The IUCN also lists 12 fish subspecies as data deficient. Of the subpopulations of fishes evaluated by the IUCN, 34 species subpopulations have been assessed as data deficient. This is a complete list of data deficient fish species and subspecies evaluated by the IUCN. Species and subspecies which have data deficient subpopulations (or stocks) are indicated. Cartilaginous fishes Chondrichthyes includes sharks, rays, skates, and sawfish. There are 475 species and three subpopulations of cartilaginous fish evaluated as data deficient. Angelsharks Rays and skates There are 253 species and one subpopulation in the order Rajiformes evaluated as data deficient. Narkids Eagle rays Guitarfish species Whiptail stingrays Narcinids Species Subpopulations * Apron ray ''(Discopyge tschudii)' ...
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Lonchurus
''Lonchurus'' is a genus of marine ray-finned fishes belonging to the family Sciaenidae, the drums and croakers. These fishes are found in the Western Atlantic. Taxonomy ''Lonchurus'' was first proposed as a genus in 1793 by the German physician and naturalist Marcus Elieser Bloch when he described ''Lonchurus barbatus'' from Suriname. Subsequently ''L. barbatus'' was found to be a synonym of Bloch's 1788 species, ''Perca lanceolatus''. This genus has been placed in the subfamily Micropogoninae by some workers, but the 5th edition of ''Fishes of the World'' does not recognise subfamilies within the Sciaenidae which it places in the order Acanthuriformes. Etymology ''Lonchurus'' means "spear tail" and refers to the pointed, lance like tail of ''L. lanceolatus''. Species ''Lonchurus'' contains the following species: * '' Lonchurus elegans'' ( Boeseman, 1948) (Blackfin croaker) * '' Lonchurus lanceolatus'' (Bloch, 1788) (Longtail croaker) Some authorities classify the blackfin c ...
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Taxa Named By Marinus Boeseman
In biology, a taxon (back-formation from ''taxonomy''; plural 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. 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 set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ...
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