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Dactylobatus
''Dactylobatus'' is a genus of skates in the family Rajidae. They are found in deep waters in the western Atlantic Ocean from Brazil to the United States, including the Gulf of Mexico. Species Two species are recognized in this genus: * '' Dactylobatus armatus'' B. A. Bean & A. C. Weed, 1909 (skillet skate) * '' Dactylobatus clarkii'' ( Bigelow & Schroeder __NOTOC__ Schroeder is a North German language, German (from Schröder) occupational name for a cloth cutter or tailor, from an agent derivative of Middle Low German , "to cut". The same term was occasionally used to denote a gristmiller as well as ..., 1958) (hook skate) References {{Taxonbar, from=Q3011717 Rajiformes Ray genera Taxa named by Barton Appler Bean ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylobatus Armatus
The skillet skate (''Dactylobatus armatus'') is a small-bodied, deepwater skate (fish), skate in the family Rajidae. Distribution and habitat The skillet skate is typically found at depths between . Found in the western central Atlantic, its range extends from South Carolina to southern Florida, the northern Gulf of Mexico, and the Caribbean coasts of Nicaragua and northern South America. Description The skillet skate is a small skate. Its total length is up to 32 cm. Its body is narrow and features a spatula-shaped lobe from the margin of each pectoral muscle. On the underside of the frontal disc, the skate displays characteristic spines. Relationship to humans This species is assessed as least concern. References Rajiformes Fish of the Atlantic Ocean Fish described in 1909 {{Rajiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylobatus Clarkii
The hook skate or Clark's fingerskate (''Dactylobatus clarkii'') is a medium-sized (75 cm in length), but poorly known, deepwater skate (fish), skate." Its distribution is considered patchy and covers the western central and southwest Atlantic, including the east coast of Florida, throughout the Gulf of Mexico (Guatemala, Lesser Antilles, Colombia, Venezuela, and Suriname), and off Rio Grande do Sul (southern Brazil). Description A 1967 survey of specimens included 14 males ranging from , and eight females from . It has been found on muddy bottoms of the continental slope at depths of . Bigelow and Schroeder describe the species as "characterized among western Atlantic rajids by the presence of a band of formidable and very sharp thorns extending along the margin of the lower surface from the tip of the snout almost to the outer corners of the disc." The number of thorns in the median row varied from 30 to 43, without apparent relation to the size or age of the skate, wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skate (fish)
Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays. More than 150 species have been described, in 17 genera.LAST, P.R. & SÉRET, B. & STEHMANN, M.F.W. & WEIGMANN, S. (2016) Skates, Family Rajidae. In: Last, P.R., White, W.T., Carvalho, M.R. de, Séret, B., Stehmann, M.F.W & Naylor, G.J.P (Eds.) Rays of the World. CSIRO Publishing, Melbourne: 204–363 Softnose skates and pygmy skates were previously treated as subfamilies of Rajidae (Arhynchobatinae and Gurgesiellinae), but are now considered as distinct families. Alternatively, the name "skate" is used to refer to the entire order of Rajiformes (families Anacanthobatidae, Arhynchobatidae, Gurgesiellidae and Rajidae). Members of Rajidae are distinguished by a stiff snout and a rostrum that is not reduced. Taxonomy and systematics Evolution Skates belong to the ancient lineage of cartilaginous fishes. Fossil denticles (tooth-like scales in the skin) resembling those of today's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barton Appler Bean
Barton Appler Bean was an American ichthyologist, born May 21, 1860 in Lancaster County, Pennsylvania and died June 16, 1947 in Chemung, New York, after falling from a bridge. He was the brother of the ichthyologist Tarleton Hoffman Bean (1846-1916). He obtained a job at the National Museum of Natural History in Washington in 1881 where he worked for his brother. Barton became assistant in 1886 and assistant curator of the Division of Fishes in 1890. He retained this position until his retirement in 1932. Barton Bean also worked for the United States Fish Commission The United States Fish Commission, formally known as the United States Commission of Fish and Fisheries, was an agency of the United States government created in 1871 to investigate, promote, and preserve the fisheries of the United States. In 1 ... as an investigator. See also * :Taxa named by Barton Appler Bean References External links * American ichthyologists 1860 births 1947 deaths {{US-z ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Cleveland Weed
Albert Cleveland Weed was an American ichthyologist, known for expeditions to the Arctic, where he catalogued the region's fish. Weed was born in North Rose, New York, and earned his bachelor's degree at Cornell University. He was hired as assistant curator of the Field Museum of Natural History in 1921. By his retirement, in 1942, he was serving as full curator of the Fishery department. He made multiple scientific field trips to Labrador and Greenland Greenland ( kl, Kalaallit Nunaat, ; da, Grønland, ) is an island country in North America that is part of the Kingdom of Denmark. It is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago. Greenland i ... in the 1920s and 1930s. References {{authority control Weed, Alfred Cleveland Cornell University alumni American ichthyologists Explorers of the Arctic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Mexico
The Gulf of Mexico ( es, Golfo de México) is an oceanic basin, ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States; on the southwest and south by the Mexico, Mexican States of Mexico, states of Tamaulipas, Veracruz, Tabasco, Campeche, Yucatan, and Quintana Roo; and on the southeast by Cuba. The Southern United States, Southern U.S. states of Texas, Louisiana, Mississippi, Alabama, and Florida, which border the Gulf on the north, are often referred to as the "Third Coast" of the United States (in addition to its Atlantic and Pacific Ocean, Pacific coasts). The Gulf of Mexico took shape approximately 300 million years ago as a result of plate tectonics.Huerta, A.D., and D.L. Harry (2012) ''Wilson cycles, tectonic inheritance, and rifting of the North American Gulf of Mexico continental margin.'' Geosphere. 8(1):GES00725.1, first p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Henry Bryant Bigelow
Henry Bryant Bigelow (October 3, 1879 – December 11, 1967) was an American oceanographer and marine biologist. He is the grandson of Henry Bryant (naturalist), Henry Bryant who was an American physician and natural history, naturalist. After graduating from Harvard in 1901, he began working with famed ichthyologist Alexander Agassiz. Bigelow accompanied Agassiz on several major marine science expeditions including one aboard the ''USS Albatross (1882), Albatross'' in 1907. He began working at the Museum of Comparative Zoology in 1905 and joined Harvard's faculty in 1906 where he worked for 62 years. In 1911, Bigelow was elected a Fellow of the American Academy of Arts and Sciences. He helped found the Woods Hole Oceanographic Institution in 1930 and was its founding director. During his life he published more than one hundred papers and several books. He was a world-renowned expert on coelenterates and elasmobranchs. In 1948 Bigelow was awarded the Daniel Giraud Elliot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Charles Schroeder
William Charles Schroeder (1895–1977) was an American ichthyologist. He was born on Staten Island, New York. He, along with his lifelong colleague Henry Bryant Bigelow, made substantial contributions to the knowledge of the fish fauna of the western North Atlantic. The two described 42 new species of jawless fishes and cartilaginous fishes, and authored several seminal publications, including ''Fishes of the Western North Atlantic'' and ''Fishes of the Gulf of Maine''. Legacy *A species of Chilean lizard, ''Liolaemus schroederi'', is named in his honor. *A genus of catsharks, ''Schroederichthys ''Schroederichthys'' is a genus of catsharks in the family Scyliorhinidae. Species * '' Schroederichthys bivius'' ( J. P. Müller & Henle, 1838) (narrowmouthed catshark) * '' Schroederichthys chilensis'' ( Guichenot, 1848) (redspotted catshark) ...'', is named after Schroeder.Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rajiformes
Rajiformes is one of the four orders in the superorder Batoidea, flattened cartilaginous fishes related to sharks. Rajiforms are distinguished by the presence of greatly enlarged pectoral fins, which reach as far forward as the sides of the head, with a generally flattened body. The undulatory pectoral fin motion diagnostic to this taxon is known as rajiform locomotion. The eyes and spiracles are located on the upper surface of the head and the gill slits are on the underside of the body. Most species give birth to live young, although some lay eggs enclosed in a horny capsule ("mermaid's purse"). Characteristics Rajoids typically have a dorsoventrally flattened body. The snout is slender and pointed and the wide mouth, often covered with a fleshy nasal flap, is on the underside of the head. The eyes and well-developed spiracles are located on the top of the head. In most species, the spiracles are large and are the main means of drawing water in for respiration. There is no n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray Genera
Ray may refer to: Fish * Ray (fish), any cartilaginous fish of the superorder Batoidea * Ray (fish fin anatomy), a bony or horny spine on a fin Science and mathematics * Ray (geometry), half of a line proceeding from an initial point * Ray (graph theory), an infinite sequence of vertices such that each vertex appears at most once in the sequence and each two consecutive vertices in the sequence are the two endpoints of an edge in the graph * Ray (optics), an idealized narrow beam of light * Ray (quantum theory), an equivalence class of state-vectors representing the same state Arts and entertainment Music * The Rays, an American musical group active in the 1950s * Ray (musician), stage name of Japanese singer Reika Nakayama (born 1990) * Ray J, stage name of singer William Ray Norwood, Jr. (born 1981) * ''Ray'' (Bump of Chicken album) * ''Ray'' (Frazier Chorus album) * ''Ray'' (L'Arc-en-Ciel album) * ''Rays'' (Michael Nesmith album) (former Monkee) * ''Ray'' (soundtrack ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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