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Holohalaelurus
''Holohalaelurus'' is a genus of catshark in the family Scyliorhinidae, commonly known as Izak catsharks or hallelujah sharks. Member species of this genus are distributed in the western Indian Ocean off the coasts of various Southern African and East African countries, from Kenya to Namibia. Species * '' Holohalaelurus favus'' Human, 2006 (honeycomb Izak) * '' Holohalaelurus grennian'' Human, 2006 (grinning Izak) * '' Holohalaelurus melanostigma'' (Norman, 1939) (crying Izak) * '' Holohalaelurus punctatus'' ( Gilchrist, 1914) (white-spotted Izak) * ''Holohalaelurus regani The Izak catshark or simply Izak (''Holohalaelurus regani'') is a species of catshark, belonging to the family Scyliorhinidae, common off the coasts of South Africa and southern Namibia. It typically inhabits the outer continental shelf at dept ...'' ( Gilchrist, 1922) (Izak catshark) References * Shark genera Taxa named by Henry Weed Fowler {{Shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Izak Catshark
The Izak catshark or simply Izak (''Holohalaelurus regani'') is a species of catshark, belonging to the family Scyliorhinidae, common off the coasts of South Africa and southern Namibia. It typically inhabits the outer continental shelf at depths of , with the males found deeper than the females and juveniles. The Izak catshark has a short, wide, flattened head and a robust body tapering to a long, slender tail. It can be identified by its ornate color pattern of dark brown spots (in juveniles) or reticulations and blotches (in adults) on a light yellowish background, as well as by the enlarged dermal denticles over its pectoral fins and along its dorsal midline from the snout to the second dorsal fin. This species reaches in length, with the males larger than females. Bottom-dwelling and perhaps relatively active in nature, the Izak catshark feeds mainly on a diverse array of bony fishes, crustaceans, and cephalopods. A significant portion of its diet may be scavenged from off ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holohalaelurus
''Holohalaelurus'' is a genus of catshark in the family Scyliorhinidae, commonly known as Izak catsharks or hallelujah sharks. Member species of this genus are distributed in the western Indian Ocean off the coasts of various Southern African and East African countries, from Kenya to Namibia. Species * '' Holohalaelurus favus'' Human, 2006 (honeycomb Izak) * '' Holohalaelurus grennian'' Human, 2006 (grinning Izak) * '' Holohalaelurus melanostigma'' (Norman, 1939) (crying Izak) * '' Holohalaelurus punctatus'' ( Gilchrist, 1914) (white-spotted Izak) * ''Holohalaelurus regani The Izak catshark or simply Izak (''Holohalaelurus regani'') is a species of catshark, belonging to the family Scyliorhinidae, common off the coasts of South Africa and southern Namibia. It typically inhabits the outer continental shelf at dept ...'' ( Gilchrist, 1922) (Izak catshark) References * Shark genera Taxa named by Henry Weed Fowler {{Shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-spotted Izak
The white-spotted Izak or African spotted catshark (''Holohalaelurus punctatus'') is a catshark of the family Scyliorhinidae. It is found in the western Indian Ocean off the coasts of Natal, South Africa, southern Mozambique, Madagascar, Kenya, and Tanzania between latitudes 4° S and 37° S, at depths of between 220 and 440 m. It can grow up to 35 cm in length. Taxonomy The white-spotted Izak or African spotted Catshark is classified under the genus Holohalaelurus, and belongs to the species H.punctatus. They have two scientific names that are considered synonyms and they are Holohalaelurus polystigma (Regan, 1921), and Scylliorhinus punctatus Gilchrist, 1914. Most commonly referred to as the African Spotted Catshark, resides along the upper continental slope at depths of 220–420 m off South Africa, southern Mozambique, and Madagascar in the Western Indian Ocean. They are small sharks only getting to 34 cm in length. Adult males in this species tend to grow larger ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crying Izak
The crying Izak (''Holohalaelurus melanostigma'') is a very rare catshark of the family Scyliorhinidae. It is found in the western Indian Ocean off Mozambique and Tanzania Tanzania (; ), officially the United Republic of Tanzania ( sw, Jamhuri ya Muungano wa Tanzania), is a country in East Africa within the African Great Lakes region. It borders Uganda to the north; Kenya to the northeast; Comoro Islands ..., at depths of between 600 and 660 m. It can grow up to 38 cm in length. References * Compagno, Dando, & Fowler, ''Sharks of the World'', Princeton University Press, New Jersey 2005 {{DEFAULTSORT:Crying Izak Holohalaelurus Fish described in 1939 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeycomb Izak
The honeycomb Izak or Natal Izak (''Holohalaelurus favus'') is a type of catshark in the Western Indian Ocean, near South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the .... It reaches a maximum length of around 50 cm. Since the mid-1970s, no specimens have been collected, even with recent biodiversity research cruises (2002 and 2003). References honeycomb Izak KwaZulu-Natal Marine fish of South Africa honeycomb Izak {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grinning Izak
The grinning Izak or East African spotted Izak (''Holohalaelurus grennian'') is a type of catshark in the waters of the Western Indian Ocean, near Kenya ) , national_anthem = " Ee Mungu Nguvu Yetu"() , image_map = , map_caption = , image_map2 = , capital = Nairobi , coordinates = , largest_city = Nairobi .... References Holohalaelurus Fish described in 2006 {{shark-stub ... [...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, 19 ... [...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, 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Dow Fisher Gilchrist
John Dow Fisher Gilchrist (1866–1926) was a Scottish ichthyologist, who established ichthyology as a scientific discipline in South Africa. He was instrumental in the development of marine biology in South Africa and of a scientifically based local fishing industry. Education and career Gilchrist was born in Anstruther, Fife, Scotland in 1866. His early education was at Madras College, St Andrews, Scotland. He studied at the University of St Andrews and the University of Edinburgh, graduating with a Bachelor of Science (BSc) and a Master of Arts (MA). He was awarded an 1851 Exhibition scholarship for advanced studies and research, which enabled him to study feeding in marine fishes. After further studies at the University of Munich and the University of Zurich he obtained his PhD in geology at Jena University in 1894. He studied marine biology in Naples, Monaco and the Isle of Man before returning to teach zoology at the University of Edinburgh. During his three months at Nap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Roxborough Norman
John Roxborough Norman (1898, Wandsworth, London – 26 May 1944, Berkhamsted, Hertfordshire) was an English ichthyologist. He started as a clerk in a bank. His lifetime affliction with rheumatic fever began during his military service during the First World War. He entered the British Museum in 1921 where he worked for Charles Tate Regan (1878-1943). From 1939 to 1944, he was in charge of the Natural History Museum at Tring as the Curator of Zoology. Norman was the author of, among others, ''A History of Fishes'' (1931) and ''A Draft Synopsis of the Orders, Families and Genera of Recent Fishes'' (1957). He was considered closer to Albert Günther Albert Karl Ludwig Gotthilf Günther FRS, also Albert Charles Lewis Gotthilf Günther (3 October 1830 – 1 February 1914), was a German-born British zoologist, ichthyologist, and herpetologist. Günther is ranked the second-most productive r ... (1830-1914) than to Regan. See also * :Taxa named by John Roxborough Norman Referen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brett A
Brett derives from a Middle English surname meaning "Briton" or "Breton", referring to the Celtic people of Britain and Brittany, France. Brette can be a feminine name. People with the surname * Adrian Brett (born 1945) English flutist and writer * Agnes Baldwin Brett (1876–1955), American numismatist * Bill Brett, Baron Brett (born 1942), English politician and businessman * Bob Brett (1953−2021), Australian tennis coach * Brian Brett (speedway rider) (1938-2006), English speedway rider * Brian Brett (born 1950), Canadian writer * Charles Brett (1928–2005), Northern Irish lawyer * Charles Brett (MP) (1715–1799), British politician * Dorothy Brett (1883–1977), British-American painter * George Brett (baseball) (born 1953), American baseball player, brother of Ken Brett * George Brett (general) (1886–1963), American general * George Wendell Brett (1912–2005), American philatelist * Henry Brett (polo player) (born 1974), English polo player * Jan Brett (born 1949), Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Namibia
Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and east. Although it does not border Zimbabwe, less than 200 metres (660 feet) of the Botswanan right bank of the Zambezi River separates the two countries. Namibia gained independence from South Africa on 21 March 1990, following the Namibian War of Independence. Its capital and largest city is Windhoek. Namibia is a member state of the United Nations (UN), the Southern African Development Community (SADC), the African Union (AU) and the Commonwealth of Nations. The driest country in sub-Saharan Africa, Namibia has been inhabited since pre-historic times by the San, Damara and Nama people. Around the 14th century, immigrating Bantu peoples arrived as part of the Bantu expansion. Since then, the Bantu groups, the largest being the Ovambo, h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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