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Centroscyllium Nigrum By Garman
''Centroscyllium'' is a genus of big-eyed, deepwater dogfishes with no anal fin, a grey or black-brown body, and dorsal spines, with the second one being much larger than the first. Seven extant species are described. Species * '' Centroscyllium excelsum'' Shirai & Nakaya, 1990 (highfin dogfish) * '' Centroscyllium fabricii'' J. C. H. Reinhardt, 1825 (black dogfish) * '' Centroscyllium granulatum'' Günther, 1887 (granular dogfish) * '' Centroscyllium kamoharai'' T. Abe, 1966 (bareskin dogfish) * '' Centroscyllium nigrum'' Garman, 1899 (combtooth dogfish) * ''Centroscyllium ornatum'' Alcock Alcock is a surname. Notable people with the surname include: Notable people with the surname Alcock * Alfred William Alcock, British naturalist * C. W. Alcock, British sports administrator and creator of the FA Cup * Charles R. Alcock, American ..., 1889 (ornate dogfish) * '' Centroscyllium ritteri'' Jordan & Fowler, 1903 (whitefin dogfish) References Shark genera Tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Dogfish
The black dogfish (''Centroscyllium fabricii'') is a species of dogfish shark in the family Etmopteridae. It is common over the outer continental shelf and continental slope at depths of . Females generally inhabit deeper water than males, and depending on the region, smaller sharks may occur at different depths than larger ones. This species is distributed widely in the Atlantic Ocean, from Greenland and Iceland to Virginia and West Africa in the north, and off southwestern Africa and Argentina in the south. The largest member of its family, the black dogfish, typically measures long. It has a stocky, dark brown body that is darker below than above, and bears scattered, minute bioluminescent organs. Its two dorsal fins are preceded by stout spines, and the anal fin is absent. Active and schooling, the black dogfish is an opportunistic predator and scavenger that mainly consumes bony fishes, crustaceans, and cephalopods. It is aplacental viviparous, with females producing litters ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centroscyllium Kamoharai
The bareskin dogfish (''Centroscyllium kamoharai'') is a little-known, deepwater dogfish shark of the family Etmopteridae. This species is found in the western Pacific from southern Japan to western and southeastern Australia as well as in New Zealand waters. The bareskin dogfish has no anal fin. It has grooved dorsal spines with the second larger than the first, a smaller first dorsal fin, blunt nose, large eyes, large nostrils, widely spaced and sparse denticles, and is dark in color with white-tipped fins. It is stout and grows to a maximum of 40 cm.FAO Species Catalogue Volume 4 Parts 1, Sharks of the World Like other species in the family Etmopteridae (lanternsharks), the bareskin dogfish has a bioluminescent organ on the ventral side. However, perhaps owing to the depth at which the species lives, it has relatively fewer photophores on its ventral skin than others bioluminescent sharks. Conservation status The New Zealand Department of Conservation has classi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shark Genera
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used to refer to all extinct members of Chondrichthyes with a shark-like morphology, such as hybodonts and xenacanths. The oldest modern sharks are known from the Early Jurassic. They range in size from the small dwarf lanternshark (''Etmopterus perryi''), a deep sea species that is only in length, to the whale shark (''Rhincodon typus''), the largest fish in the world, which reaches approximately in length. Sharks are found in all seas and are common to depths up to . They generally do not live in freshwater, although there are a few known exceptions, such as the bull shark and the river shark, which can be found in both seawater and freshwat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centroscyllium
''Centroscyllium'' is a genus of big-eyed, deepwater dogfishes with no anal fin, a grey or black-brown body, and dorsal spines, with the second one being much larger than the first. Seven extant species are described. Species * '' Centroscyllium excelsum'' Shirai & Nakaya, 1990 (highfin dogfish) * '' Centroscyllium fabricii'' J. C. H. Reinhardt, 1825 (black dogfish) * '' Centroscyllium granulatum'' Günther, 1887 (granular dogfish) * '' Centroscyllium kamoharai'' T. Abe, 1966 (bareskin dogfish) * '' Centroscyllium nigrum'' Garman, 1899 (combtooth dogfish) * ''Centroscyllium ornatum'' Alcock Alcock is a surname. Notable people with the surname include: Notable people with the surname Alcock * Alfred William Alcock, British naturalist * C. W. Alcock, British sports administrator and creator of the FA Cup * Charles R. Alcock, American ..., 1889 (ornate dogfish) * '' Centroscyllium ritteri'' Jordan & Fowler, 1903 (whitefin dogfish) References Shark genera Tax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Weed Fowler
Henry Weed Fowler (March 23, 1878 – June 21, 1965) was an American zoologist born in Holmesburg, Pennsylvania. He studied at Stanford University under David Starr Jordan. He joined the Academy of Natural Sciences in Philadelphia and worked as an assistant from 1903 to 1922, associate curator of vertebrates from 1922 to 1934, curator of fish and reptiles from 1934 to 1940 and curator of fish from 1940 to 1965. He published material on numerous topics including crustaceans, birds, reptiles and amphibians, but his most important work was on fish. In 1927 he co-founded the American Society of Ichthyologists and Herpetologists and acted as treasurer until the end of 1927. In 1934 he went to Cuba, alongside Charles Cadwalader (president of the Academy of Natural Sciences of Philadelphia), at the invitation of Ernest Hemingway to study billfishes, he stayed with Hemingway for six weeks and the three men developed a friendship which continued after this trip and Hemingway sent speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Starr Jordan
David Starr Jordan (January 19, 1851 – September 19, 1931) was the founding president of Stanford University, serving from 1891 to 1913. He was an ichthyologist during his research career. Prior to serving as president of Stanford University, he had served as president of Indiana University from 1884 to 1891. Starr was also a strong supporter of eugenics, and his published views expressed a fear of "race-degeneration" and asserted that cattle and human beings are "governed by the same laws of selection". He was an antimilitarist since he believed that war killed off the best members of the gene pool, and he initially opposed American involvement in World War I. Early life and career Jordan was born in Gainesville, New York, and grew up on a farm in upstate New York. His parents made the unorthodox decision to educate him at a local girls' high school. His middle name, Starr, does not appear in early census records, and was apparently self-selected; he had begun using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centroscyllium Ritteri
The whitefin dogfish (''Centroscyllium ritteri'') is a species of deep-sea dogfish shark in the family Etmopteridae. It has only been found in the northwest Pacific Ocean off the southeastern coast of Japan, between the latitudes of 35 and 32°N. It inhabits continental slopes and seamounts at a depth of . Reproduction is ovoviviparous. It is of no interest to fisheries and almost nothing is known of its biology. The specific epithet ''ritteri'' is in honor of Dr. William Emerson Ritter of the University of California. The largest known example of this shark measured long. It has an elongated body with a broad, flattened head and a moderately long snout. The eyes and spiracles are large. The mouth is broadly arched, containing many teeth with narrow cusps and lateral cusplets. There are two roughly equal-sized dorsal fins with grooved spines; the second spine is longer than the first and slightly curved. The pectoral fins are short and broad, not reaching the first do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred William Alcock
Alfred William Alcock (23 June 1859 in Bombay – 24 March 1933 in Belvedere, Kent) was a British physician, naturalist, and carcinologist. Early life and education Alcock was the son of a sea-captain, John Alcock in Bombay, India who retired to live in Blackheath. His mother was a daughter of Christopher Puddicombe, the only son of a Devon squire. Alcock studied at Mill Hill School, at Blackheath Proprietary School and at Westminster School. In 1876 his father faced financial losses and he was taken out of school and sent to India in the Wynaad district. Here he was taken care of by relatives engaged in coffee-planting. As a boy of 17 he spent time in the jungles of Malabar. Career Coffee-planting in Wynaad declined and Alcock obtained a post at a commission agent's office in Calcutta. This office closed soon, and he worked from 1878 to 1880 in Purulia as an agent recruiting unskilled labourers for the Assam tea gardens. While here an acquaintance, Duncan Cameron, le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centroscyllium Ornatum
The ornate dogfish (''Centroscyllium ornatum'') is Squaliformes, dogfish shark which is not widely known. It is found in deepwater on the continental shelf, continental slopes of the Indian Ocean, the Arabian Sea and the Bay of Bengal, at depths between 520 and 1,260 m. Its length is up to 30 cm, and its reproduction is ovoviviparous. Field marks No anal fin, grooved dorsal fin spines, teeth with narrow cusps and cusplets in upper and lower jaws, uniform dark coloration. Short abdomen and short caudal peduncle, close-set denticles on body. Diagnostic features Body moderately stout and compressed, preoral snout moderately long, about half of distance from mouth to pectoral origins; mouth narrowly arched, nearly half as high as wide. Second dorsal fin somewhat larger than first; pectoral apices when laid back ending about opposite to first dorsal spine origin. Caudal peduncle moderately long, distance from second dorsal insertion to upper caudal origin about as long as distan ... [...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 a naturalist/zoologist from Pennsylvania. 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, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centroscyllium Nigrum
The combtooth dogfish (''Centroscyllium nigrum'') is a little-known, deepwater dogfish shark, named after its teeth that are comb-shaped. Description The combtooth dogfish has no anal fin, grooved dorsal spines, two dorsal fins of about same size, a pointed nose, large eyes, small gill slits, a short abdomen, a short caudal peduncle, and is blackish-brown in color with white-tipped fins. Like all dogfish sharks, it has 2 spines in front of its 2 dorsal fins. It grows to a maximum of 50cm. It has a faint tiger-like band held together by the lateral line that has photophores that emit light to attract prey. Immature pups are born at 11-13cm. It has a spiracle behind each eye. Diet It consists of eating small fish, shrimp, and cephalopods A cephalopod is any member of the molluscan class Cephalopoda (Greek plural , ; "head-feet") such as a squid, octopus, cuttlefish, or nautilus. These exclusively marine animals are characterized by bilateral body symmetry, a prominen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tokiharu Abe
was a Japanese ichthyologist and a government official of Ministry of Agriculture and Forestry. Career Tokiharu Abe was born in Tabata, Tokyo, emigrated to Taiwan with his family in 1919, graduated from Taipei High School and was admitted to Tokyo Imperial University.Takifugu.html" ;"title="he taxonomic study on the family fish of Takifugu">he taxonomic study on the family fish of Takifugu of the sea around Japan in 1952. He became senior researcher at Tokai Regional Fisheries Research Institute and retired in 1977. He worked for the University Museum of the University of Tokyo. He became the superintendent of Osakana Fukyu Sentā Shiryōkan (Tsukiji Fish Information Center and Museum).Osakana Fukyu Sentā Shiryōkan (Tsukiji Fish Informa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
