Hydnophora Exesa
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Hydnophora Exesa
''Hydnophora exesa'', also called horn coral or spine coral, is a coral in the genus ''Hydnophora''. It was described by Peter Simon Pallas in 1766. Location They are found in the oceans of North and East Australia, Southeast Asia, and East Africa East Africa, Eastern Africa, or East of Africa, is the eastern subregion of the African continent. In the United Nations Statistics Division scheme of geographic regions, 10-11-(16*) territories make up Eastern Africa: Due to the historical .... References Merulinidae Marine fauna of Australia {{scleractinia-stub ...
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Peter Simon Pallas
Peter Simon Pallas Fellow of the Royal Society, FRS FRSE (22 September 1741 – 8 September 1811) was a Prussian zoologist and botanist who worked in Russia between 1767 and 1810. Life and work Peter Simon Pallas was born in Berlin, the son of Professor of Surgery Simon Pallas. He studied with private tutors and took an interest in natural history, later attending the University of Halle and the University of Göttingen. In 1760, he moved to the University of Leiden and passed his doctor's degree at the age of 19. Pallas travelled throughout the Netherlands and to London, improving his medical and surgical knowledge. He then settled at The Hague, and his new system of animal classification was praised by Georges Cuvier. Pallas wrote ''Miscellanea Zoologica'' (1766), which included descriptions of several vertebrates new to science which he had discovered in the Dutch museum collections. A planned voyage to southern Africa and the East Indies fell through when his father reca ...
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Coral
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base. Over many generations, the colony thus creates a skeleton characteristic of the species which can measure up to several meters in size. Individual colonies grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously overnight, often around a full moon. Fertilized eggs form planulae, a mobile early form of the coral polyp which, when m ...
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Hydnophora
''Hydnophora'' is a genus of large polyp stony corals in the family Merulinidae. List of species According to World Register of Marine Species : * '' Hydnophora bonsai'' Veron, 1990 * '' Hydnophora exesa'' (Pallas, 1766) * '' Hydnophora grandis'' Gardiner, 1904 * '' Hydnophora microconos'' (Lamarck, 1816) * '' Hydnophora pilosa'' Veron, 1985 * ''Hydnophora rigida Hydnophora rigida, commonly known as horn coral, are found in reefs and are in the genus ''Hydnophora''. They were first described by Dana in 1846. Their color is naturally green and brown, or sometimes cream. They can also become fluorescent green ...'' (Dana, 1846) References Merulinidae Scleractinia genera {{scleractinia-stub ...
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North Australia
North Australia can refer to a short-lived former British colony, a former federal territory of the Commonwealth of Australia, or a proposed state which would replace the current Northern Territory. Colony (1846–1847) A colony of North Australia existed briefly after it was authorised by letters patent of 17 February 1846. The colony comprised all land in the Northern Territory and the present state of Queensland lying north of the 26th parallel. The capital was at Port Curtis, now called Gladstone, under Colonel George Barney as Lieutenant-Governor and Superintendent. Charles Augustus FitzRoy, the Governor of New South Wales, was Governor. The colony was proclaimed at a ceremony at Settlement Point on 30 January 1847. The establishment of the new colony, and its status as a penal colony, attracted much criticism in the New South Wales Legislative Council. The Letters Patent establishing the colony were revoked in December the same year, after a change of government in Brita ...
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East Australia
The eastern states of Australia are the states adjoining the east continental coastline of Australia. These are the mainland states of Victoria, New South Wales and Queensland, and the island state of Tasmania. The Australian Capital Territory and Jervis Bay Territory, while not states, are also included. On some occasions, the southern state of South Australia is also included in this grouping due to its economic ties with the eastern states. Regardless of which definition is used, the eastern states include the great majority of the Australian population. They contain the federal capital Canberra and Australia's three largest cities Sydney, Melbourne and Brisbane (all capitals of the respective east coast states), as well as the three largest non-capital cities in the country: Gold Coast, Queensland; Newcastle, New South Wales; and Wollongong, New South Wales. In terms of climate, the area is dominated by a humid subtropical zone, with some tropical (Queensland) and o ...
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Southeast Asia
Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical United Nations geoscheme for Asia#South-eastern Asia, south-eastern region of Asia, consisting of the regions that are situated south of mainland China, east of the Indian subcontinent, and north-west of mainland Australia. Southeast Asia is bordered to the north by East Asia, to the west by South Asia and the Bay of Bengal, to the east by Oceania and the Pacific Ocean, and to the south by Australia (continent), Australia and the Indian Ocean. Apart from the British Indian Ocean Territory and two out of atolls of Maldives, 26 atolls of Maldives in South Asia, Maritime Southeast Asia is the only other subregion of Asia that lies partly within the Southern Hemisphere. Mainland Southeast Asia is completely in the Northern Hemisphere. East Timor and the southern portion of Indonesia are the only parts that are south of the Equator. Th ...
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East Africa
East Africa, Eastern Africa, or East of Africa, is the eastern subregion of the African continent. In the United Nations Statistics Division scheme of geographic regions, 10-11-(16*) territories make up Eastern Africa: Due to the historical Omani Empire and colonial territories of the British East Africa Protectorate and German East Africa, the term ''East Africa'' is often (especially in the English language) used to specifically refer to the area now comprising the three countries of Kenya, Tanzania, and Uganda. However, this has never been the convention in many other languages, where the term generally had a wider, strictly geographic context and therefore typically included Djibouti, Eritrea, Ethiopia, and Somalia.Somaliland is not included in the United Nations geoscheme, as it is internationally recognized as a part of Somalia. *Tanzania, Kenya, Uganda, Rwanda, Burundi, Democratic Republic of Congo and South Sudan are members of the East African Community. The firs ...
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Merulinidae
Merulinidae is a family of reef-building stony corals. Characteristics All the genera in this family are colonial, reef-building corals. Skeletal structures are similar to those of Faviidae but are highly fused, without paliform lobes. The valleys are superficial or may be indistinct because of fan-like spreading or contortions in the ridges. Faviidae and Trachyphylliidae are the most closely related families. Genera The World Register of Marine Species includes these genera in the family: *'' Astrea'' Lamarck, 1801 *''Australogyra'' Veron & Pichon, 1982 *'' Boninastrea'' Yabe & Sugiyama, 1935 *''Caulastraea'' Dana, 1846 *''Coelastrea'' Verrill, 1866 *''Cyphastrea'' Milne Edwards & Haime, 1848 *''Dipsastraea'' Blainville, 1830 *''Echinopora'' Lamarck, 1816 *'' Erythrastrea'' Pichon, Scheer & Pillai, 1983 *''Favites'' Link, 1807 *''Goniastrea'' Milne Edwards & Haime, 1848 *''Hydnophora'' Fischer von Waldheim, 1807 *'' Hydnophyllia'' † Reis, 1889 *'' Isastraea''† Milne Edwar ...
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