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Apristurus
''Apristurus'' is a genus of catsharks, the family Scyliorhinidae, commonly known as the ghost or demon catsharks. Species The 39 currently recognized species in this genus are: * '' Apristurus albisoma'' Nakaya & Séret, 1999 (white-bodied catshark) * ''Apristurus ampliceps'' Sasahara, Sato & Nakaya, 2008 (roughskin catshark) * '' Apristurus aphyodes'' Nakaya & Stehmann, 1998 (white ghost catshark) * '' Apristurus australis'' Sato Nakaya & Yorozu, 2008 (Pinocchio catshark) * '' Apristurus breviventralis'' Kawauchi, Weigmann & Nakaya, 2014 (shortbelly catshark) * '' Apristurus brunneus'' C. H. Gilbert, 1892 (brown catshark) * ''Apristurus bucephalus'' W. T. White, Last & Pogonoski, 2008 (bighead catshark) * ''Apristurus canutus'' S. Springer & Heemstra, 1979 (hoary catshark) * '' Apristurus exsanguis'' Sato, Nakaya & A. L. Stewart, 1999 (flaccid catshark) * '' Apristurus fedorovi'' Dolganov, 1985 (Fedorov's catshark) * '' Apristurus garricki'' Sato, Stewar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White Ghost Catshark
The white ghost catshark (''Apristurus aphyodes'') is a shark of the catshark family Scyliorhinidae found in deep water in the northeast Atlantic between latitudes 57°N and 58°N. A deep-water catshark known from the eastern North Atlantic from depths of 1,014 to 1,800 m, it is known from only a limited number of specimens. It reaches a maximum of 54 cm or 1.7 ft total length which is a medium size for the ''Apristurus'' genus. Description and morphology The white ghost catshark has a slender and cylindrical body with a relatively long and flattened snout. It is distinguished from the other 10 North Atlantic ''Apristurus'' species by the following. It has a uniform whitish coloration and large oval eyes with a weak subocular fold. Its snout is bell shaped and contains numerous visible pores making up ampullae of Lorenzini on the dorsal and ventral side of the snout. Its preorbital snout length (where the snout intersects its eyes) equals half of its head length. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kazuhiro Nakaya
is a Japanese marine scientist and ichthyologist. He graduated from Hokkaido University with a BA in 1968 and with a PhD in 1972. He is professor of Marine Environment and Resources at the Marine Laboratory for Biodiversity. He specializes in taxonomy and evolution of sharks, rays, chimaeras, and Lake Tanganyikan fish. He is the author of many articles and books on sharks and fish. In 1995 he was put in charge of dissecting and preparing the 7th specimen of the very rare megamouth shark. Research Field New species described by Nakaya and colleagues Family Scyliorhinidae (Cat sharks) Whitebody catshark ('' Apristurus albisoma'' Nakaya & Séret, 1999)br /> Largehead catshark (''Apristurus ampliceps'' Sasahara, Sato & Nakaya, 2008) Catshark ('' Apristurus aphyodes'' Nakaya & Stehmann, 1998) Southern catshark ('' Apristurus australis'' Sato, Nakaya & Yorozu, 2008) Shortbelly catshark ('' Apristurus breviventralis'' Kawauchi, Weigmann & Nakaya, 2014) Softbody catshark ('' Aprist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flaccid Catshark
The flaccid catshark (''Apristurus exsanguis'') is a catshark of the family Scyliorhinidae. It is endemic to the waters around New Zealand. Distribution This species is found only around New Zealand, although this species' collection records indicate it is widespread and probably continuously distributed over the mid- to lower slope around New Zealand. The biology of all ''Apristurus'' species within the New Zealand Exclusive Economic Zone is very poorly known due to the uncertain taxonomy of the group. They appear to be most abundant below 1,000 m, and are the only sharks regularly taken in research trawls below 1,200 m on the Chatham Rise. As relatively little fishing occurs below 1,200 m, a large part of their population may be effectively beyond fishing depths. Conservation status The New Zealand Department of Conservation has classified the flaccid catshark as "Data deficient" under the New Zealand Threat Classification System The New Zealand Threat Classification Sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Catshark
The brown catshark (''Apristurus brunneus'') is commonly found in the Pacific Ocean, ranging from the northern Pacific waters off the coast of British Columbia and south to the Baja California peninsula in Mexico. They may live as far south as Ecuador and Peru. Brown catsharks are deep-water sharks that live on the outer continental shelf and the upper slope. They have been known to live at depths ranging from 30 to 650 m and live on the bottom, usually in muddy or sandy areas. The brown catshark, when originally described, was called ''Catulus brunneus''. Description Brown catsharks have long, slender bodies with broad, bell-shaped snouts. They are dark brown with light-colored markings on the posterior margins of their fins. Their bodies are soft and flabby, with a weak skin that can easily be harmed. Brown catsharks' two dorsal fins are the same size and do not have spines. The first dorsal fin originates to the front of the pelvic fin and the second dorsal fin is located in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apristurus Albisoma
The white-bodied catshark (''Apristurus albisoma'') is a catshark of the family Scyliorhinidae. Description This shark is coloured whitish to light grey. Distribution This species is found in the western Pacific. The area of occupancy of this small benthic endemic shark was presumed very limited (less than 2,000 km²), being restricted to a narrow depth band on insular and seamount slopes near New Caledonia. However this species has been collected in waters of the north of New Zealand on the West Norfolk Ridge. Conservation status Although this species has been classified by the International Union for Conservation of Nature as of least concern, there is a worry that this species may be taken as un-utilised bycatch by deepwater trawl fisheries and that, like other deepwater species, it may not be sufficiently fecund to withstand exploitation pressure in these fisheries. The New Zealand Department of Conservation has classified the white-bodied catshark as "Data def ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roughskin Catshark
The roughskin catshark (''Apristurus ampliceps'') is a species of catshark in the family Scyliorhinidae found near Australia and New Zealand. Its natural habitat is the open seas. This species belongs to a genus of poorly known deep-water catsharks. This species was first described in 2008 by Ryohei Sasahara, Keiichi Sato & Kazuhiro Nakaya. Very little is known of its biology. This species is known to occur in deep water (840 to 1,380 m) off New Zealand, sporadic sites around Tasmania, and a small area of Western Australia. Some concern exists for this species, as its distribution includes some heavily fished areas. Deep-water demersal trawl fisheries are expanding in the region, and assuming its biology is like other deep-water shark species, it may not be sufficiently fecund to withstand the exploitation pressure. Conservation status The New Zealand Department of Conservation An environmental ministry is a national or subnational government agency politically respon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shortbelly Catshark
The shortbelly catshark (''Apristurus breviventralis'') is a catshark of the family Scyliorhinidae. It is found in Gulf of Aden, Indian Ocean. This species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ... most closely resembles the western Atlantic species '' Apristurus canutus'', but is distinguishable in having greater nostril length than internarial width and longer claspers in adult males.Kawauchi, J., Weigmann, S. & Nakaya, K. (2014): ''Apristurus breviventralis'', a new species of deep-water catshark (Chondrichthyes: Carcharhiniformes: Scyliorhinidae) from the Gulf of Aden. ''Zootaxa, 3881 (1): 1–16.'' References External linksApristurus breviventralisKAWAUCHI, WEIGMANN & NAKAYA, 2014 shortbelly catshark Gulf of Aden Taxa named by Junro Kawauchi Taxa named by S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoary Catshark
The hoary catshark (''Apristurus canutus'') is a catshark of the family Scyliorhinidae found in the western central Atlantic in the Caribbean, at depths between . Its length is up to . The reproduction of this catshark is oviparous. References * * Compagno, Dando, & Fowler, ''Sharks of the World'', Princeton University Press Princeton University Press is an independent publisher with close connections to Princeton University. Its mission is to disseminate scholarship within academia and society at large. The press was founded by Whitney Darrow, with the financial su ..., New Jersey 2005 {{Taxonbar, from=Q770717 hoary catshark Fish of the Caribbean Fish of the Dominican Republic Taxa named by Stewart Springer Taxa named by Phillip C. Heemstra hoary catshark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smallbelly Catshark
The smallbelly catshark (''Apristurus indicus'') is a catshark of the family Scyliorhinidae found in the western Indian Ocean near Somalia, the Gulf of Aden, and Oman, at depths between 1,300 and 1,840 m. Its length is up to 34 cm, although this measurement is of an immature specimen. The smallbelly catshark is not well known. It is found on continental slopes, and is probably caught by bottom trawlers. The reproduction of the smallbelly catshark is oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and .... References * smallbelly catshark Vertebrates of the Arabian Peninsula Fish of Somalia Fish of the Indian Ocean Marine fauna of Southern Africa smallbelly catshark smallbelly catshark {{Shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pinocchio Catshark
The Pinocchio catshark (''Apristurus australis'') is a species of catshark in the family Scyliorhinidae found in Australia and possibly New Zealand. Its natural habitat is the open seas. It belongs to a genus of poorly known deep-water sharks. Very little is known of its biology. Possibly a widely distributed deep-water catshark found along the Australian continental slope at depths of 590 to 1,000 m, it consists of several distinct populations which may be separate species. Although part of the distribution includes heavily fished areas, particularly off southeastern Australia, much of its range is in unfished areas. Given the taxonomic uncertainty of the separate populations, it is not possible to assess the conservation status of this species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catshark
Catsharks are ground sharks of the family Scyliorhinidae. They are the largest family of sharks with around 160 species placed in 17 genera. Although they are generally known as catsharks, some species can also be called dogfish due to previous naming. However, a dogfish may generally be distinguished from a catshark as catsharks lay eggs while dogfish have live young. Like most bottom feeders, catsharks feed on benthic invertebrates and smaller fish. They are not harmful to humans. The family is paraphyletic, containing several distinct lineages that do not form a monophyletic group. Genera The family includes 17 genera and over 150 species, making it the largest family of sharks. * '' Akheilos'' White, Fahmi & Weigmann, 2019 * ''Apristurus'' Garman, 1913 * ''Asymbolus'' Whitley, 1939 * ''Atelomycterus'' Garman, 1913 * ''Aulohalaelurus'' Fowler, 1934 * ''Bythaelurus'' Compagno, 1988 * ''Cephaloscyllium'' T. N. Gill, 1862 * ''Cephalurus'' Bigelow and Schroeder, 1941 * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bighead Catshark
The bighead catshark (''Apristurus bucephalus'') is a species of fish in the family Scyliorhinidae endemic to Australia. Its natural habitat is the open seas. It belongs to a genus of poorly known deep-water catsharks, and is recorded from only three specimens taken off Perth, Western Australia. This species could be rare or uncommon, and the effects of fisheries are unknown, though if its biology is like other deep-water shark 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 Selachi ... species, it may not be sufficiently fecund to withstand exploitation pressures. References bighead catshark Marine fish of Western Australia bighead catshark bighead catshark Taxa named by Peter R. Last Taxa named by John J. Pogonoski Taxonomy articles created by Polbot {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
