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Gila (fish)
''Gila'' is a genus of fish belonging to the family Leuciscidae, native to the United States and Mexico. Species of ''Gila'' are collectively referred to as western chubs. The species in the genus ''Siphateles'' are close relatives. Several members of the genus are endangered or extinct due to loss of habitat caused by diversion or overuse of water resources, particularly in the western United States. Species ''Gila'' contains the following valid recent species: * ''Gila alutacea'' (Louis Agassiz, Agassiz & Charles Pickering (naturalist), Pickering, 1855) (Chiselmouth) * ''Gila atraria'' (Charles Frédéric Girard, Girard, 1856) (Utah chub) * ''Gila brevicauda'' Steven Mark Norris, S. M. Norris, Jared M. Fischer, J. M. Fischer & Wendell L. Minckley, W. L. Minckley, 2003 (Shorttail chub) * ''Gila coerulea'' (Girard, 1856) (Blue chub) * ''Gila conspersa'' Samuel Garman, Garman, 1881 (Nazas chub) * ''Gila coriacea'' (Carl Leavitt Hubbs, Hubbs & Robert Rush Miller, Miller, 1948) (Moa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middle Miocene
The Middle Miocene is a sub-epoch of the Miocene epoch (geology), epoch made up of two Stage (stratigraphy), stages: the Langhian and Serravallian stages. The Middle Miocene is preceded by the Early Miocene. The sub-epoch lasted from 15.97 ± 0.05 Ma (million years ago) to 11.608 ± 0.005 Ma. During this period, a sharp drop in global temperatures took place. This event is known as the Middle Miocene disruption, Middle Miocene Climatic Transition. For the purpose of establishing European land mammal ages, this sub-epoch is equivalent to the Astaracian age. References External links GeoWhen Database - Middle Miocene Miocene, .02 Miocene geochronology, 02 Langhian, * Serravallian, * {{geochronology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Brevicauda
The Shorttail chub (''Gila brevicauda'') is a species of freshwater ray-finned fish belonging to the family Leuciscidae, the daces, chubs, Eurasian minnows and related species. This fish is endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ... to the Mayo River basin, Chihuahua, Mexico. References * {{Taxonbar, from=Q3766610 Chubs (fish) Gila (fish) Taxa named by Wendell L. Minckley Fish described in 2003 Freshwater fish of Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Eremica
The desert chub (''Gila eremica'') is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, Eurasian minnows and related species. This species is endemic to Mexico. It inhabits the headwaters of the Sonora Sonora (), officially Estado Libre y Soberano de Sonora (), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is divided into Municipalities of Sonora, 72 ... and Mátape rivers of northwestern Mexico. References * {{Taxonbar, from=Q3767413 Chubs (fish) Freshwater fish of Mexico Gila (fish) Fish described in 1991 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Elegans
The bonytail chub or bonytail (''Gila elegans'') is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, Eurasian minnows and related species. This fish is native to the Colorado River basin of Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming in the southwestern United States; it has been extirpated from the part of the basin in Mexico. It was once abundant and widespread in the basin, its numbers and range have declined to the point where it has been listed as endangered since 1980 ( ESA) and 1986 (IUCN), a fate shared by the other large Colorado basin endemic fish species like the Colorado pikeminnow, humpback chub, and razorback sucker. It is now the rarest of the endemic big-river fishes of the Colorado River. There are 20 species in the genus '' Gila'', seven of which are found in Arizona. Description A bonytail chub can grow to long. Like many other desert fishes, its coloring tends to be darker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Ditaenia
The Sonora chub (''Gila ditaenia'') is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, Eurasian minnows and related species. It is found in Mexico and the United States.Bell, G. 1984. Sonora chub, Sycamore Canyon. Memo, USDA Forest Service, Coronado National Forest, Nogales, Arizona. p. 13. Description ''Gila ditaenia'', the Sonora chub is one of seven species of chub native to Arizona. This particular species is one of the smaller species of chub, rarely exceeding 200 millimeters in length. Most specimens in the United States never even exceed 125 millimeters. The Sonora chub's body is typically very chubby, hence its name, with fusiform and terete implications in some individuals. Sonora chubs can be distinguished if one notices the unusually small scales. There are 63 to 75 scales in a lateral line. They have eight fin rays on their dorsal, anal, and pelvic fins with some variation between seven or nine. Their ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Cypha
The humpback chub (''Gila cypha'') is a federally protected fish that lived originally in fast waters of the Colorado River system in the United States. This species takes its name from the prominent hump between the head and dorsal fin, which is thought to direct the flow of water over the body and help maintain body position in the swift currents of the Colorado river. The body is almost entirely scaleless, retaining only about 80 mid-lateral scales along the lateral line. The fish is very streamlined, with a thin caudal peduncle and a deeply forked tail. The back is a light olive gray, the sides silver, and the belly white. The dorsal fin usually has nine rays, and the anal fin 10 or more. Maximum recorded length is 38 cm. The humpback chub mostly consumes invertebrates and, to a lesser extent, other fish. They feed at all levels from the bottom to the surface. The species spawns from April through June, at water temperatures of . The males develop nuptial tubercles on th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and recover. As a species' potential Range (biology), range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxon, Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the Fossil, fossil record) after a period of apparent absence. Over five billion species are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryotes globally, possibly many times more if microorganisms are included. Notable extinct animal species include Dinosaur, non-avian dinosaurs, Machairodontinae, saber-toothed cats, and mammoths. Through evolution, species arise through the process of specia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Crassicauda
The thicktail chub (''Gila crassicauda'') was a type of minnow that inhabited the lowlands and weedy backwaters of the Sacramento and San Joaquin Rivers in the Central Valley of California. It was once abundant in lowland lakes, marshes, ponds, slow-moving stretches of river, and, during years of heavy run-off, the surface waters of San Francisco Bay. The thicktail chub was one of the most common fish in California. Within Native American middens it represented 40% of the fish. The chub was a favored food of the indigenous peoples of Clear Lake and the Central Valley before being heavily exploited by commercial fishermen supplying the San Francisco market. A heavy-bodied fish with a thick tail and a small, cone-shaped head, the backs of the thicktail chub ranged in color from greenish brown to purplish black, while the sides and belly were yellow. It could reach a length of nearly ten inches. Although little is known about its behavior, it was probably carnivorous, feeding on sm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Coriacea
The moapa dace (''Gila coriacea'') is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, Eurasian minnows and related species. This is a rare fish found in southern Nevada, United States, found only in the upper parts of the Muddy (formerly Moapa) River, and in the warm springs that give rise to the river. A small fish, with a maximum recorded length of , its scales are small and embedded in the skin, resulting in a noticeably leathery texture (thus the species epithet, derived from Latin ''coriaceus'' "leathery"). General body shape is standard for daces, with a vaguely conical head. Moapa dace require warm water, and can survive in a temperature range of . They inhabit waters with abundant algae and shade over gravel, sand and mud, and have an omnivorous diet. Their reproduction cycle peaks in spring and is the lowest in fall, occurring in headwater tributaries. Spawning occurs within of headwaters springs, in wat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Samuel Garman
Samuel Walton Garman (June 5, 1843 – September 30, 1927), or "Garmann" as he sometimes styled himself, was an American naturalist and zoologist. He became noted as an ichthyologist and herpetologist. Biography Garman was born in Indiana County, Pennsylvania, on 5 June 1843. In 1868 he joined an expedition to the American West with John Wesley Powell. He graduated from the Illinois State Normal University in 1870, and for the following year was principal of the Mississippi State Normal School. In 1871, he became professor of natural sciences in Ferry Hall Seminary, Lake Forest, Illinois, and a year later became a special pupil of Louis Agassiz. He was a friend and regular correspondent of the naturalist Edward Drinker Cope, and in 1872 accompanied him on a fossil hunting trip to Wyoming. In 1870 he became assistant director of herpetology and ichthyology at Harvard's Museum of Comparative Zoology. His work was mostly in the classification of fish, especially sharks, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Conspersa
The Nazas chub (''Gila conspersa'') is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, Eurasian minnows and related species. This fish is endemic to Mexico where it is found in the endorheic drainage systems of the Nazas and the Aguanaval basin, which flow into the Bolsón de Mapimí, in the States of Coahuila, Durango and Zacatecas Zacatecas, officially the Free and Sovereign State of Zacatecas, is one of the Political divisions of Mexico, 31 states of Mexico. It is divided into Municipalities of Zacatecas, 58 municipalities and its capital city is Zacatecas City, Zacatec .... References * Chubs (fish) Freshwater fish of Mexico Gila (fish) Fish described in 1881 Taxa named by Samuel Garman {{Leuciscinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gila Coerulea
The blue chub (''Gila coerulea'') is a species of freshwater ray-finned fish belonging to the family Leuciscidae, which includes the daces, chubs, Eurasian minnows and related species. This fish is found in the western United States. Taxonomy The blue chub was first formally described as ''Cheonda coerulea'' in 1859 by the French biologist Charles Frédéric Girard with its type locality given as the Lost River in California. It is now classified within the genus '' Gila'' which is classified in the subfamily Laviniinae of the family Leuciscidae. Etymology The blue chub is classified in the genus ''Gila'', a genus proposed in 1853 by Spencer Fullerton Baird and Charles Frédéric Girard. Baird and Girard did not explain what the name alluded to, it may be to the Gila River, although Baird and Girard said the first three species they classified in this genus were found in the neighbouring Zuni River, which they may have thought were both part of the same drainage. Alternatively ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
