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Perryenidae
The whitenose pigfish (''Perryena leucometopon'') is a species of marine ray-finned fish belonging to the Family (biology), family Congiopodidae, the horsefishes or pigfishes. It is Endemism, endemic to the waters off southern and western Australia. It is the only species in the Monotypic taxon, monotypic genus ''Perryena'' and the Taxonomy (biology), classification of that genus in the family Congiopodidae is not universally agreed upon. Taxonomy The whitenose pigfish was first formally Species description, described in 1922 as ''Congiopodus leucometopon'' by the British-born Australian zoologist, ichthyologist, herpetologist, and ornithologist Edgar Ravenswood Waite with the Type locality (biology), type locality given as the beach at Glenelg, South Australia, Glenelg on Gulf St Vincent in South Australia. In 1940 Gilbert Percy Whitley reclassified this species in the monotypic genus ''Perryena''. A recent study placed the whitenose pigfish into an expanded stonefish clade, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synanceiidae
Synanceiinae is a subfamily of venomous ray-finned fishes, waspfishes, which is classified as part of the family Scorpaenidae, the scorpionfishes and their relatives. These fishes are found in the Indo-Pacific oceans. They are primarily marine, though some species are known to live in fresh or brackish waters. The various species of this family are known informally as stonefish, stinger, stingfish and ghouls. Its species are known to have the most potent neurotoxins of all the fish venoms, secreted from glands at the base of their needle-like dorsal fin spines. The vernacular name, stonefish, for some of these fishes derives from their behaviour of camouflaging as rocks. The type species of the family is the estuarine stonefish ('' Synanceia horrida''). Taxonomy Synanceiinae, or the family Synanceiidae, was first named and recognised as a grouping of related taxa by the English naturalist William John Swainson in 1839. The 5th edition of ''Fishes of the World'' treats this g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congiopodidae
Congiopodidae, commonly known as pigfishes, horsefishes and racehorses, is a family of ray-finned fish classified with in the order Scorpaeniformes. These fishes are native to the Southern Hemisphere. Taxonomy Congiopodidae was first formally recognised as a family by the American biologist Theodore Gill in 1889. The 5th edition of ''Fishes of the World'' classifies the family within the suborder Scorpaenoidei which in turn is classified within the order Scorpaeniformes. Other authorities place the Scorpaenoidei within the Perciformes. The monophyly of the Congiopodidae as set out in ''Fishes of the World'' is not universally agreed upon. Some authorities classify the genus ''Perryena'' in its own subfamily, Perryeninae, in the stonefish family Synanceiidae. The genera ''Alertichthys'' and ''Zanclorhynchus'' are classified within the family Zanclorhynchidae leaving ''Congiopodus'' as the only genus in the monotypic Congiopodidae. The name of the family is based on that of the g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Congiopodus
''Congiopodus'' is a genus of marine ray-finned fishes belonging to the family Congiopodidae, the pigfishes or horsefishes. These fishes are found in the southern Atlantic and Pacific oceans. Taxonomy Congiopodus was first formally described as a genus in 1811 by the English naturalist George Perry when he described ''Congiopodus percatus'', the type species by monotypy. Subsequently, Perry's species was shown to be a junior synonym of ''Blennius torvus'' which had been described by the Dutch zoologist Laurens Theodorus Gronow in 1772, with an erroneous type locality of the Indian Ocean given for this southern African species. The genus is the type genus of the family Congiopodidae, and some authorities regard this family as monogeneric, but the 5th edition of Fishes of the World classifies three other genera within this family. The family is placed in the suborder Scorpaenoidei which in turn is classified within the order Scorpaeniformes in that book but other au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gilbert Percy Whitley
Gilbert Percy Whitley (9 June 1903 – 18 July 1975) was a British-born Australian ichthyologist and malacologist who was Curator of Fishes at the Australian Museum in Sydney for about 40 years. He was born at Swaythling, Southampton, England, and was educated at King Edward VI School, Southampton and the Royal Naval College, Osborne. Whitley migrated with his family to Sydney in 1921 and he joined the staff of the Australian Museum in 1922 while studying zoology at Sydney Technical College and the University of Sydney. In 1925 he was formally appointed Ichthyologist (later Curator of Fishes) at the Museum, a position he held until retirement in 1964. During his term of office he doubled the size of the ichthyological collection to 37,000 specimens through many collecting expeditions. Whitley was also a major force in the Royal Zoological Society of New South Wales, of which he was made a Fellow in 1934 and where he served as president during 1940–41, 1959–60 and 1973� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories by area, and second smallest state by population. It has a total of 1.8 million people. Its population is the second most highly centralised in Australia, after Western Australia, with more than 77 percent of South Australians living in the capital Adelaide, or its environs. Other population centres in the state are relatively small; Mount Gambier, the second-largest centre, has a population of 33,233. South Australia shares borders with all of the other mainland states, as well as the Northern Territory; it is bordered to the west by Western Australia, to the north by the Northern Territory, to the north-east by Queensland, to the east by New South Wales, to the south-east by Victoria, and to the south by the Great Australian B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Fish Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, '' Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda.' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Continental Shelf
A continental shelf is a portion of a continent that is submerged under an area of relatively shallow water, known as a shelf sea. Much of these shelves were exposed by drops in sea level during glacial periods. The shelf surrounding an island is known as an ''insular shelf''. The continental margin, between the continental shelf and the abyssal plain, comprises a steep continental slope, surrounded by the flatter continental rise, in which sediment from the continent above cascades down the slope and accumulates as a pile of sediment at the base of the slope. Extending as far as 500 km (310 mi) from the slope, it consists of thick sediments deposited by turbidity currents from the shelf and slope. The continental rise's gradient is intermediate between the gradients of the slope and the shelf. Under the United Nations Convention on the Law of the Sea, the name continental shelf was given a legal definition as the stretch of the seabed adjacent to the sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Demersal Fish
Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone).Walrond Carl . "Coastal fish - Fish of the open sea floor"Te Ara - the Encyclopedia of New Zealand. Updated 2 March 2009 They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks. In coastal waters they are found on or near the continental shelf, and in deep waters they are found on or near the continental slope or along the continental rise. They are not generally found in the deepest waters, such as abyssal depths or on the abyssal plain, but they can be found around seamounts and islands. The word ''demersal'' comes from the Latin ''demergere'', which means ''to sink''. Demersal fish are bottom feeders. They can be contrasted with pelagic fish which live and feed away from the bottom in the open water column. Demersal fish fillets contain little fish oil (one to four percent), whereas pelagic fish can contain up to 30 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Denison, Western Australia
Port Denison is a town of 3000 residents in the Mid West region of Western Australia. Its local government area is the Shire of Irwin and it is located southwest of Dongara on the Indian Ocean coast. History Port Denison was initially known as Irwin Port in 1866 due to its position near the mouth of the Irwin River. However, when it was officially named and gazetted in 1867, it was renamed in honour of Sir William Denison, a former Governor of Tasmania who in 1851 had visited Western Australia in connection with transportation of convicts. Economy Port Denison is the home port of a number of commercial fishermen that catch lobster Lobsters are a family (Nephropidae, synonym Homaridae) of marine crustaceans. They have long bodies with muscular tails and live in crevices or burrows on the sea floor. Three of their five pairs of legs have claws, including the first pair, ... (known as crayfish locally). References External links Towns in Western Australia Sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of . It is the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. the state has 2.76 million inhabitants percent of the national total. The vast majority (92 percent) live in the south-west corner; 79 percent of the population lives in the Perth area, leaving the remainder of the state sparsely populated. The first Europeans to visit Western Australia belonged to the Dutch Dirk Hartog expedition, who visited the Western Australian coast in 1616. The first permanent European colony of Western Australia occurred following ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of a fish. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim. Fins located in different places on the fish serve different purposes such as moving forward, turning, keeping an upright position or stopping. Most fish use fins when swimming, flying fish use pectoral fins for gliding, and frogfish use them for crawling. Fins can also be used for other purposes; male sharks and mosquitofish use a modified fin to deliver sperm, thresher sharks use their caudal fin to stun prey, reef stonefish have spines in their dorsal fins that inject venom, anglerfish use the first spine of their dorsal fin like a fishing rod to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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