|
Pseudobagrus
''Pseudobagrus'' is a genus of bagrid catfishes that inhabit streams and rivers throughout East Asia. About half of these species occur in China. The two ''Coreobagrus'' species, ''C. brevicorpus'' and ''C. ichikiwai'', are both treated in some recent literature as valid in ''Pseudobagrus''. It has been noted that '' Pelteobagrus'' may not be monophyletic if species placed in ''Pseudobagrus'' and ''Coreobagrus'' were excluded. The taxonomy of this genus is unclear and many authorities treat it as a junior synonym of '' Tachysurus''. ''Pseudobagrus'' species are small- to mid-sized bagrid catfishes. These fish all have an inferior mouth; narial openings widely separated; four pairs of barbels; top of head covered by skin in most species; two dorsal fin spines; pelvic fin small; and caudal fin emarginate, truncate or round. One fossil species, '' P. ikiensis'' Watanabe & Uyeno, is known from the Middle Miocene of Japan.Watanabe, K. and Uyeno, T.; ''Fossil bagrid catfishes from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudobagrus Brachyrhabdion
''Pseudobagrus'' is a genus of bagrid catfishes that inhabit streams and rivers throughout East Asia. About half of these species occur in China. The two ''Coreobagrus'' species, ''C. brevicorpus'' and ''C. ichikiwai'', are both treated in some recent literature as valid in ''Pseudobagrus''. It has been noted that ''Pelteobagrus'' may not be monophyletic if species placed in ''Pseudobagrus'' and ''Coreobagrus'' were excluded. The taxonomy of this genus is unclear and many authorities treat it as a junior synonym of ''Tachysurus''. ''Pseudobagrus'' species are small- to mid-sized bagrid catfishes. These fish all have an inferior mouth; narial openings widely separated; four pairs of barbels; top of head covered by skin in most species; two dorsal fin spines; pelvic fin small; and caudal fin emarginate, truncate or round. One fossil species, '' P. ikiensis'' Watanabe & Uyeno, is known from the Middle Miocene of Japan.Watanabe, K. and Uyeno, T.; ''Fossil bagrid catfishes from Ja ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pseudobagrus Ikiensis
''Pseudobagrus'' is a genus of bagrid catfishes that inhabit streams and rivers throughout East Asia. About half of these species occur in China. The two ''Coreobagrus'' species, ''C. brevicorpus'' and ''C. ichikiwai'', are both treated in some recent literature as valid in ''Pseudobagrus''. It has been noted that ''Pelteobagrus'' may not be monophyletic if species placed in ''Pseudobagrus'' and ''Coreobagrus'' were excluded. The taxonomy of this genus is unclear and many authorities treat it as a junior synonym of ''Tachysurus''. ''Pseudobagrus'' species are small- to mid-sized bagrid catfishes. These fish all have an inferior mouth; narial openings widely separated; four pairs of barbels; top of head covered by skin in most species; two dorsal fin spines; pelvic fin small; and caudal fin emarginate, truncate or round. One fossil species, '' P. ikiensis'' Watanabe & Uyeno, is known from the Middle Miocene of Japan.Watanabe, K. and Uyeno, T.; ''Fossil bagrid catfishes from Japa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bagrid Catfish
The Bagridae are a family of catfish that are native to Africa (''Bagrus'') and Asia (all other genera) from Japan to Borneo. It includes about 245 species. These fish are commonly known as naked catfishes or bagrid catfishes. Many large bagrids are important as a source of food. Some species are also kept as aquarium fishes. Physical characteristics The dorsal fin is preceded by a spine. The adipose fin is present and can have a relatively long base in some species. The pectoral fin spine can be serrated. The body is completely naked (they have no scales). The maximum length is about . Fishes of the family Bagridae have four pairs of well-developed barbels covered by a layer of taste bud-enriched epithelium. Taxonomy The taxonomy of this family has changed rapidly. Nelson (2006) comments how "the family is very different from that recognized in Nelson (1994)". Claroteidae and Austroglanididae contain species that were previously bagrids. Auchenoglanididae is considered by so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pieter Bleeker
Pieter Bleeker (10 July 1819 – 24 January 1878) was a Dutch medical doctor, ichthyologist, and herpetologist. He was famous for the ''Atlas Ichthyologique des Indes Orientales Néêrlandaises'', his monumental work on the fishes of East Asia published between 1862 and 1877. Life and work Bleeker was born on 10 July 1819 in Zaandam. He was employed as a medical officer in the Royal Netherlands East Indies Army from 1842 to 1860, (in French). stationed in the Dutch East Indies (now Indonesia). During that time, he did most of his ichthyology work, besides his duties in the army. He acquired many of his specimens from local fishermen, but he also built up an extended network of contacts who would send him specimens from various government outposts throughout the islands. During his time in Indonesia, he collected well over 12,000 specimens, many of which currently reside at the Naturalis Biodiversity Center in Leiden. Bleeker corresponded with Auguste Duméril of Paris. His w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheng Jian-Li
Cheng may refer to: Chinese states * Chengjia or Cheng (25–36 AD) * Cheng Han Cheng Han (; 303 or 304 – 347) was a dynastic state of China listed as one of the Sixteen Kingdoms in Chinese historiography. Ruled by the Di people, its territory was based in what is modern-day Sichuan Province, China. Cheng and Han It ... or Cheng (304–338) * Zheng (state), or Cheng in Wade–Giles Places * Chengdu, abbreviated as Cheng * Cheng County, in Gansu, China * Cheng Township, in Malacca, Malaysia People * Cheng (surname), Chinese surname * Zheng (surname), Cheng in Wade–Giles and Cantonese * ChEng, abbreviation for chief engineer Other uses * Cheng language, a Mon–Khmer language of southern Laos * Cheng (musical instrument), an ancient Chinese musical instrument See also *Zheng (other), or Cheng in Wade–Giles {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Treadwell Nichols
John Treadwell Nichols (June 11, 1883 – November 10, 1958) was an American ichthyologist and ornithologist. Life and career Nichols was born in Jamaica Plain, Boston, Massachusetts, the son of Mary Blake (Slocum) and John White Treadwell Nichols. In 1906 he studied vertebrate zoology at Harvard College, where he graduated with a Bachelor of Arts (AB). In 1907 he joined the American Museum of Natural History as assistant in the department of mammalogy. In 1913 he founded ''Copeia'', the official journal of the American Society of Ichthyologists and Herpetologists. In 1916 he described the long lost Bermuda petrel together with Louis Leon Arthur Mowbray who first sighted this bird within a flock of other petrels in 1906 on Castle Island, Bermuda 45 years before it was officially rediscovered by Mowbray's son Louis. He also described the fish genus ''Bajacalifornia''. He also worked with a team of scientists from the American Museum of Natural History during the Jersey Shore sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.png "Click for more on -> Caudal Fin")