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Centroscyllium Ornatum
''Centroscyllium'' is a genus of big-eyed, deepwater Squaliformes, 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 Shigeru, Shirai & Kazuhiro Nakaya, Nakaya, 1990 (highfin dogfish) * ''Centroscyllium fabricii'' Johan Reinhardt, J. C. H. Reinhardt, 1825 (black dogfish) * ''Centroscyllium granulatum'' Albert Günther, Günther, 1887 (granular dogfish) * ''Centroscyllium kamoharai'' Tokiharu Abe, T. Abe, 1966 (bareskin dogfish) * ''Centroscyllium nigrum'' Samuel Garman, Garman, 1899 (combtooth dogfish) * ''Centroscyllium ornatum'' Alfred William Alcock, Alcock, 1889 (ornate dogfish) * ''Centroscyllium ritteri'' David Starr Jordan, Jordan & Henry Weed Fowler, Fowler, 1903 (whitefin dogfish) References Centroscyllium, Shark genera Taxa named by Johannes Peter Müller Taxa named by Friedrich Gustav Jakob Henle {{ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Dogfish
The black dogfish (''Centroscyllium fabricii'') is a species of Squaliformes, dogfish shark in the family (biology), 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 bioluminescence, bioluminescent organs. Its two dorsal fins are preceded by stout spines, and the anal fin is absent. Active and shoaling and schooling, schooling, the black dogfish is an opportunistic predator and scavenger that mainly consumes bony fishes, crustaceans, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centroscyllium Kamoharai
The bareskin dogfish (''Centroscyllium kamoharai'') is a little-known, deepwater Squaliformes, dogfish shark of the family (biology), 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 Dermal denticle, 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 other bioluminescent sharks. Conservation status The New Zeala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shark Genera
Sharks are a group of elasmobranch cartilaginous fish characterized by a ribless endoskeleton, dermal denticles, five to seven gill slits on each side, and pectoral fins that are not fused to the head. Modern sharks are classified within the division Selachii and are the sister group to the Batomorphi ( rays and skates). Some sources extend the term "shark" as an informal category including extinct members of Chondrichthyes (cartilaginous fish) with a shark-like morphology, such as hybodonts. Shark-like chondrichthyans such as ''Cladoselache'' and ''Doliodus'' first appeared in the Devonian Period (419–359 million years), though some fossilized chondrichthyan-like scales are as old as the Ordovician, Late Ordovician (458–444 million years ago). The earliest confirmed modern sharks (Selachii) are known from the Early Jurassic around , with the oldest known member being ''Agaleus'', though records of true sharks may extend back as far as the Permian. Sharks range in size ... [...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, 1889 (ornate dogfish) * '' Centroscyllium ritteri'' Jordan Jordan, officially the Hashemite Kingdom of Jordan, is a country in the Southern Levant region of West Asia. Jordan is bordered by Syria to the north, Iraq to the east, Saudi Arabia to the south, and Israel and the occupied Palestinian ter ... & 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, Philadelphia, 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 Drexel University, 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 devel ... [...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 served as president of Indiana University Bloomington, Indiana University from 1885 to 1891. Jordan was also a strong supporter of eugenics, and his published views expressed a fear of "race-degeneration", asserting 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 education Jordan was born in Gainesville (town), New York, Gainesville, New York, and grew up on a farm in upstate New York. His parents made an unorthodox decision to educate him at a local girls' high school. His middle name, Starr, does not appear in early census records, ... [...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 dorsal fin ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centroscyllium Ornatum
''Centroscyllium'' is a genus of big-eyed, deepwater Squaliformes, 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 Shigeru, Shirai & Kazuhiro Nakaya, Nakaya, 1990 (highfin dogfish) * ''Centroscyllium fabricii'' Johan Reinhardt, J. C. H. Reinhardt, 1825 (black dogfish) * ''Centroscyllium granulatum'' Albert Günther, Günther, 1887 (granular dogfish) * ''Centroscyllium kamoharai'' Tokiharu Abe, T. Abe, 1966 (bareskin dogfish) * ''Centroscyllium nigrum'' Samuel Garman, Garman, 1899 (combtooth dogfish) * ''Centroscyllium ornatum'' Alfred William Alcock, Alcock, 1889 (ornate dogfish) * ''Centroscyllium ritteri'' David Starr Jordan, Jordan & Henry Weed Fowler, Fowler, 1903 (whitefin dogfish) References Centroscyllium, Shark genera Taxa named by Johannes Peter Müller Taxa named by Friedrich Gustav Jakob Henle {{ ... [...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] |
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. Habits and Habitat It is an uncommon deepwater shark found close to the bottom between 400 and 1,145m. It is found in the eastern Pacific and around Hawaii Hawaii ( ; ) is an island U.S. state, state of the United States, in the ... [...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.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 Information Center and Museum) / Central Wholesale Market Abe beca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
