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Lythrurus Fumeus
The ribbon shiner (''Lythrurus fumeus'') is a species of freshwater fish of the cyprinid genus ''Lythrurus'' and is native to the United States. Description The ribbon shiner belongs to the family Cyprinidae. ''L. fumeus'' has a short snout that is rounded with a relatively large terminal mouth. The head is short with large eyes, and the diameter of the eye is greater than the length of the snout. The body is moderately deep, elongated, and laterally compressed. Its dorsal fin lacks the prominent black spot. This species has a dorsal fin that lacks the prominent black spot. The dorsal surface of the fish is typically an olive or straw color that has a silver overlay, and there is a dusky strip along its back. The ventral surface is a silvery white, and has a silver-black strip along its side. There are more than 21 predorsal scale rows, the scales are small, and there are 10-12 anal rays. The maximum length is 55 mm (2.16 inches). Diet Ribbon shiners school in mid or su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barton Warren Evermann
Barton Warren Evermann (October 24, 1853 – September 27, 1932) was an American ichthyologist. Early life and education Evermann was born in Monroe County, Iowa in 1853. His family moved to Indiana while he was still a child and it was there that he grew up, completed his education, and married. Evermann graduated from Indiana University in 1886. Career For 10 years, he served as teacher and superintendent of schools in Indiana and California. While teaching in Carroll County, Indiana Evermann met fellow teacher Meadie Hawkins. They married on October 24, 1875 and had a son, Toxaway Bronte (born 1879) and a daughter, Edith (born). He was professor of biology at the Indiana State University in Terre Haute from 1886 to 1891. He lectured at Stanford University in 1893–1894, at Cornell University in 1900–1903, and at Yale University in 1903–1906. In the early 20th century, as director of the California Academy of Sciences in San Francisco, he promoted resear ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinidae
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] |
Lythrurus
''Lythrurus'', the finescale shiners, is a genus of cyprinid fish found in North America. There are currently 11 species in this genus. Species * ''Lythrurus alegnotus'' ( Snelson, 1972) (warrior shiner) * ''Lythrurus ardens'' (Cope, 1868) (rosefin shiner) * ''Lythrurus atrapiculus'' ( Snelson, 1972) (blacktip shiner) * ''Lythrurus bellus'' ( O. P. Hay, 1881) (pretty shiner) * ''Lythrurus fasciolaris'' ( C. H. Gilbert, 1891) (scarletfin shiner, scarlet shiner) * ''Lythrurus fumeus'' ( Evermann, 1892) (ribbon shiner) * ''Lythrurus lirus'' ( D. S. Jordan, 1877) (mountain shiner) * ''Lythrurus matutinus'' (Cope, 1870) (pinewoods shiner) * ''Lythrurus roseipinnis'' ( O. P. Hay, 1885) (cherryfin shiner) * '' Lythrurus snelsoni'' ( H. W. Robison, 1985) (Ouachita shiner) * ''Lythrurus umbratilis The redfin shiner (''Lythrurus umbratilis'') is a freshwater fish in the family Cyprinidae. The redfin shiner is most commonly found in the Ohio and Mississippi River basins, as well as in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benthic
The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from ancient Greek, βένθος (bénthos), meaning "the depths." Organisms living in this zone are called benthos and include microorganisms (e.g., bacteria and fungi) as well as larger invertebrates, such as crustaceans and polychaetes. Organisms here generally live in close relationship with the substrate and many are permanently attached to the bottom. The benthic boundary layer, which includes the bottom layer of water and the uppermost layer of sediment directly influenced by the overlying water, is an integral part of the benthic zone, as it greatly influences the biological activity that takes place there. Examples of contact soil layers include sand bottoms, rocky outcrops, coral, and bay mud. Description Oceans The benthic region of the ocean begins at the shore line (intertidal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish Described In 1892
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. Most fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
