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Richardsonius
''Richardsonius'' is a genus of cyprinid fish consisting of two species native to western North America. Commonly known as redside shiners, that term is also used to refer to ''Richardsonius balteatus'' specifically. The genus is named after naturalist Sir John Richardson (1787–1865), who described ''R. balteatus'' in 1836. Species * ''Richardsonius balteatus The redside shiner (''Richardsonius balteatus'') is a species of cyprinid fish found in the western United States and Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean ...'' ( J. Richardson, 1836) (Redside shiner) * '' Richardsonius egregius'' ( Girard, 1858) (Lahontan redside) References * * Fish of North America Fish of the United States {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richardsonius
''Richardsonius'' is a genus of cyprinid fish consisting of two species native to western North America. Commonly known as redside shiners, that term is also used to refer to ''Richardsonius balteatus'' specifically. The genus is named after naturalist Sir John Richardson (1787–1865), who described ''R. balteatus'' in 1836. Species * ''Richardsonius balteatus The redside shiner (''Richardsonius balteatus'') is a species of cyprinid fish found in the western United States and Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean ...'' ( J. Richardson, 1836) (Redside shiner) * '' Richardsonius egregius'' ( Girard, 1858) (Lahontan redside) References * * Fish of North America Fish of the United States {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richardsonius Egregius
The Lahontan redside (''Richardsonius egregius'') is a cyprinid fish of the Great Basin in eastern California and western Nevada. Lahontan redsides are noted for their breeding colors, consisting of a bright red stripe with a yellow border on each side. At other times, the stripe is still visible, but the red is much reduced, leaving a gradual transition from the olive-colored back to silvery underside. Overall shape is slender, with a large eye and terminal mouth. The dorsal fin has 7-8 rays, while the anal fin has 8-10 rays. The pectoral fins are somewhat long, the tips reaching nearly to the bases of the pelvic fins. The tail is deeply forked. Total length ranges up to 17 cm, but an 8 cm length is more typical of mature adults. They are found in a variety of habitats within their range, primarily feeding on small invertebrates. Stream populations shoal near the surface of quiet pools, where they catch drifting insects, while in lakes they form groups in the littoral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richardsonius Balteatus
The redside shiner (''Richardsonius balteatus'') is a species of cyprinid fish found in the western United States and Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot .... References * Richardsonius Cyprinid fish of North America Fish of Canada Fish of the United States Fish described in 1836 Taxa named by John Richardson (naturalist) {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinid
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family. It includes the carps, the true minnows, and relatives like the barbs and barbels. Cyprinidae is the largest and most diverse fish family and the largest vertebrate animal family in general with about 3,000 species, of which only 1,270 remain extant, divided into about 370 genera. Cyprinids range from about 12 mm in size to the giant barb (''Catlocarpio siamensis''). By genus and species count, the family makes up more than two-thirds of the ostariophysian order Cypriniformes. The family name is derived from the Greek word ( 'carp'). Biology and ecology Cyprinids are stomachless fish with toothless jaws. Even so, food can be effectively chewed by the gill rakers of the specialized last gill bow. These pharyngeal teeth allow the fish to make chewing motions against a chewing plate formed by a bony process of the skull. The pharyngeal teeth are unique to each species and are used by scient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shiner (fish)
Shiner is a common name used in North America for any of several kinds of small, usually silvery fish, in particular a number of cyprinids, but also e.g. the shiner perch (''Cymatogaster aggregata''). Cyprinid shiners are: * Eastern shiners, genus ''Notropis'' * Finescale shiners, genus ''Lythrurus'' * Flagfin shiners, genus '' Pteronotropis'' * Golden shiner, '' Notemigonus crysoleucas'' (a monotypic genus) * Highscale shiners, genus ''Luxilus'' * Redside shiners, genus '' Richardsonius'' * Satinfin shiners, genus ''Cyprinella'' Image:Notropis maculatus.jpg, ''Notropis maculatus'', an eastern shiner Image:Pteronotropis signipinnis.jpg, Flagfin shiner ('' Pteronotropis signipinnis'') Image:Notemigonus crysoleucas.jpg, Golden shiner (''Notemigonus crysoleucas'') Image:Cymatogaster aggregata.jpg, Shiner perch (''Cymatogaster aggregata'') See also * Chub (other) * Dace (other) * Minnow * Roach (other) Roach may refer to: Animals * Cockroach, various ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Frédéric Girard
Charles Frédéric Girard (8 March 1822 – 29 January 1895) was a French biologist specializing in ichthyology and herpetology. Born in Mulhouse, France, he studied at the College of Neuchâtel, Switzerland, as a student of Louis Agassiz. In 1847, he accompanied Agassiz as his assistant to Harvard University. Three years later, Spencer Fullerton Baird called him to the Smithsonian Institution to work on its growing collection of North American reptiles, amphibians and fishes. He worked at the museum for the next ten years and published numerous papers, many in collaboration with Baird. In 1854, he was naturalized as a U.S. citizen. Besides his work at the Smithsonian, he managed to earn an M.D. from Georgetown University in Washington, D.C. in 1856. In 1859 he returned to France and was awarded the Cuvier Prize by the Institute of France for his work on the North American reptiles and fishes two years later. When the American Civil War broke out, he joined the Confederate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Richardson (naturalist)
Sir John Richardson Royal Society of London, FRS FRSE (5 November 1787 – 5 June 1865) was a Scotland, Scottish naval surgeon, natural history, naturalist and Arctic explorer. Life Richardson was born at Nith Place in Dumfries the son of Gabriel Richardson, Provost of Dumfries, and his wife, Anne Mundell. He was educated at Dumfries Grammar School. He was then apprenticed to his maternal uncle, Dr James Mundell, a surgeon in Dumfries. He studied medicine at Edinburgh University, and became a surgeon in the navy in 1807. He traveled with John Franklin in search of the Northwest Passage on the Coppermine Expedition of 1819–1822. Richardson wrote the sections on geology, botany and ichthyology for the official account of the expedition. Franklin and Richardson returned to Canada in 1825 and went overland by fur trade routes to the mouth of the Mackenzie River. Franklin was to go as far west as possible and Richardson was to go east to the mouth of the Coppermine River. These ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Of North America
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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