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Anacanthobatidae
The Anacanthobatidae, the smooth skates or leg skates, are a family of skates found at depths below in the Indian, Pacific and Atlantic Oceans. They lack the dorsal denticles (sharp, tooth-like scales) of other rays, hence their name, from Greek ''an-'' meaning "without", ''acantha'' meaning "thorn", and ''bathys'' meaning "deep". They are bottom-dwelling fishes found on the continental slopes of tropical and subtropical The subtropical zones or subtropics are geographical zone, geographical and Köppen climate classification, climate zones to the Northern Hemisphere, north and Southern Hemisphere, south of the tropics. Geographically part of the Geographical z ... waters. References Anacanthobatidae {{Rajiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sinobatis
''Sinobatis'' is a genus of rays in the family Anacanthobatidae native to deep water in the Indo-Pacific Ocean.Weigmann, S. (2016): Annotated checklist of the living sharks, batoids and chimaeras (Chondrichthyes) of the world, with a focus on biogeographical diversity. ''Journal of Fish Biology, 88 (3): 837-1037.'' Species Nine recognized species are in this genus: * '' Sinobatis andamanensis'' Last & Bussarawit, 2016 (Andaman legskate) Last, P.R. & Bussarawit, S. (2016): A new legskate, ''Sinobatis andamanensis'' (Rajiformes: Anacanthobatidae), from the Andaman Sea (northeastern Indian Ocean). ''Zootaxa, 4168 (1): 161-170.'' * '' Sinobatis borneensis'' ( W. L. Y. Chan, 1965) (Borneo legskate) * '' Sinobatis brevicauda'' Weigmann & Stehmann, 2016 (short-tail legskate) Weigmann, S. & Stehmann, M.F.W. (2016): ''Sinobatis brevicauda'' n. sp., a new deep-water legskate (Rajiformes, Anacanthobatidae) and first generic record from the western Indian Ocean. ''Zootaxa, 4137 (4): 478 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anacanthobatis
''Anacanthobatis'' is a genus of smooth skate The Anacanthobatidae, the smooth skates or leg skates, are a family of skates found at depths below in the Indian, Pacific and Atlantic Oceans. They lack the dorsal denticles (sharp, tooth-like scales) of other rays, hence their name, from G ...s native to the western Indian Ocean, where found deeper than . Species Several species have been assigned to this genus, but most are now placed in '' Sinobatis'', '' Springeria'', and '' Schroederobatis'', leaving only ''A. marmoratus'' in ''Anacanthobatis''.Last, P.R., Weigmann, S. & Yang, L. (2016): Changes to the nomenclature of the skates (Chondrichthyes: Rajiformes). Seite 11 bis 34 in Last, P.R. & Yearsley, G.K. (Hrsg.) (2016): Rays of the World: Supplementary information. CSIRO Australian National Fish Collection. * '' Anacanthobatis marmoratus'' ( von Bonde & Swart, 1923) (spotted legskate) References Anacanthobatidae Ray genera {{Rajiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indobatis
The black legskate (''Indobatis ori'') is a species of smooth skate native to the Indian Ocean off of Madagascar and Mozambique. It is the only species in the monotypic genus ''Indobatis''. It inhabits the continental slope at depths of from . This species can reach a length of . It is dark-colored, greyish-black or brownish on the dorsum, ventrally lighter. References External links Species Description of Anacanthobatis ori at www.shark-references.com Anacanthobatidae Fish described in 1967 Taxonomy articles created by Polbot {{Rajiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Springeria
The leaf-nose leg skate (''Springeria folirostris'') is a species of ray in the family Anacanthobatidae, native to depths of in the Gulf of Mexico. It was originally described in the genus '' Springeria'', but this was later considered a subgenus of ''Anacanthobatis ''Anacanthobatis'' is a genus of smooth skate The Anacanthobatidae, the smooth skates or leg skates, are a family of skates found at depths below in the Indian, Pacific and Atlantic Oceans. They lack the dorsal denticles (sharp, tooth-lik ...''. In 2016 ''Springeria'' was again elevated to full genus status. References *John D. McEachran and Katherine A. Dunn, ''Phylogenetic Analysis of Skates, a Morphologically Conservative Clade of Elasmobranchs (Chondrichthyes: Rajidae)''. Copeia, vol. 1998, no. 2, pp. 271–290. External links Species Description of Springeria folirostris at www.shark-references.com leaf-nose leg skate Gulf of Mexico Taxa named by Henry Bryant Bigelow Taxa named by William ... [...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] |
Cecil Von Bonde
Cecil von Bonde (born Cape Town 19 July 1895; died 21 March 1983) was a South African zoologist, fisheries scientist and oceanographer. Biography Von Bonde was born in Cape Town and matriculated at the Normal College Boys' High School, Cape Town, in 1912 before going on to the University of Cape Town where he attained his Master of Arts degree and was appointed as a Senior Lecturer in Zoology in 1918. He gained his Doctor of Philosophy (PhD) in zoology from the University of Cape Town in 1923, his thesis was "The zoogeographical distribution of the Heterosomata lat fishes. Between 1924 and 1925 he studied oceanography at the University of Liverpool, also serving as a lecturer in Zoology there. He returned to Cape Town in 1926 where he wa appointed as acting head of the Zoology Department following the death of Professor J.D.F. Gilchrist. He was appointed as Director of Fisheries and Government Marine Biologist in South Africa in 1928 when he was also seconded to the Conference ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ResearchGate
ResearchGate is a European commercial social networking site for scientists and researchers to share papers, ask and answer questions, and find collaborators. According to a 2014 study by ''Nature'' and a 2016 article in ''Times Higher Education'', it is the largest academic social network in terms of active users, although other services have more registered users, and a 2015–2016 survey suggests that almost as many academics have Google Scholar profiles. While reading articles does not require registration, people who wish to become site members need to have an email address at a recognized institution or to be manually confirmed as a published researcher in order to sign up for an account. Members of the site each have a user profile and can upload research output including papers, data, chapters, negative results, patents, research proposals, methods, presentations, and software source code. Users may also follow the activities of other users and engage in discussions with th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dermal Denticle
A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages. The term ''scale'' derives from the Old French , meaning a shell pod or husk. Scales vary enormously in size, shape, structure, and extent, ranging from strong and rigid armour plates in fishes such as shrimpfishes and boxfishes, to microscopic or absent in fishes such as eels and anglerfishes. The morphology of a scale can be used to identify the species of fish it came from. Scales originated within the jawless ostracoderms, ancestors to all jawed fishes today. Most bony fishes are covered with the cycloid scales of salmon and carp, or the ctenoid scales of perch, or the ganoid scales of sturgeons and gars. Cartilaginous fishes (sharks and rays) are covered with placoid scales. Some species ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Language
Greek ( el, label=Modern Greek, Ελληνικά, Elliniká, ; grc, Ἑλληνική, Hellēnikḗ) is an independent branch of the Indo-European family of languages, native to Greece, Cyprus, southern Italy (Calabria and Salento), southern Albania, and other regions of the Balkans, the Black Sea coast, Asia Minor, and the Eastern Mediterranean. It has the longest documented history of any Indo-European language, spanning at least 3,400 years of written records. Its writing system is the Greek alphabet, which has been used for approximately 2,800 years; previously, Greek was recorded in writing systems such as Linear B and the Cypriot syllabary. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic, and many other writing systems. The Greek language holds a very important place in the history of the Western world. Beginning with the epics of Homer, ancient Greek literature includes many works of lasting impo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental Slope
A continental margin is the outer edge of continental crust abutting oceanic crust under coastal waters. It is one of the three major zones of the ocean floor, the other two being deep-ocean basins and mid-ocean ridges. The continental margin consists of three different features: the continental rise, the continental slope, and the continental shelf. The continental shelf is the relatively shallow water area found in proximity to continents. Continental margins constitute about 28% of the oceanic area. Zones of the continental margin The continental shelf is the portion of the continental margin that transitions from the shore out towards to ocean. Continental shelves are believed to make up 7% of the sea floor. The width of continental shelves worldwide varies in the range of 0.03–1500 km. The continental shelf is generally flat, and ends at the shelf break, where there is a drastic increase in slope angle: The mean angle of continental shelves worldwide is 0° 07′, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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