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Idiastion
''Idiastion'' is a small genus of marine ray-finned fish belonging to the family Scorpaenidae, the scorpionfishes. They are found in the Atlantic and Pacific oceans. Taxonomy ''Idiastion'' was first described as a genus by the American ichthyologist William N. Eschmeyer in 1965 when he was describing its type species, ''Idiastion kyphos'', from the southeastern Caribbean Sea, between Venezuela and Grenada. Subsequently two more species have been added to the genus from the Pacific Ocean. The genus is classified within the tribe Scorpaenini in the subfamily Scorpaeninae of the scorpionfish family Scorpaenidae. The genus name ''Idiastion'' is the Greek word meaning "hermit" or "recluse", alluding to the rarity of the scorpionfishes at the depths at which ''Idiastion'' was collected from. Species There are currently three recognized species in this genus: * ''Idiastion hageyi'' McCosker, 2008(Galapagos humpback scorpionfish) * '' Idiastion kyphos'' Eschmeyer, 1965 (Sharpcheek sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scorpaenini
Scorpaenini is a tribe of marine ray-finned fishes, one of two tribes in the subfamily Scorpaeninae. This tribe contains the "typical" or "true" scorpionfishes. The taxonomy of the scorpionfishes is in some flux, the 5th Edition of Fishes of the World treats this taxa as a tribe within the subfamily Scorpaeninae of the family Scorpaenidae within the order Scorpaeniformes, while other authorities treat it as a subfamily within a reduced family Scorpaenidae within the suborder Scorpaenoidei, or the superfamily Scorpaenoidea within the order Perciformes. Genera The tribe Scorpaenini contains at least 17 genera and nearly 200 species: * '' Hipposcorpaena'' Fowler, 1938 * '' Hoplosebastes'' Schmidt, 1929 * '' Idiastion'' Eschmeyer, 1965 * '' Iracundus'' Jordan & Evermann, 1903 * '' Neomerinthe'' Fowler, 1935 * '' Neoscorpaena'' Mandrytsa, 2001 * ''Parascorpaena'' Bleeker, 1876 * ''Phenacoscorpius'' Fowler, 1938 * ''Pogonoscorpius'' Regan, 1908 * '' Pontinus'' Poey 1860 * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scorpaeninae
Scorpaeninae is a subfamily of ray-finned fish belonging to the family Scorpaenidae in the order Scorpaeniformes, it includes the scorpionfishes, the lionfishes and turkeyfishes. They bear venomous spines in the anal, dorsal and pelvic fins which can cause severe pain in envenomated humans. The subfamily is distributed in the tropical and temperate seas around the world. Genera Scorpaeninae is divided into two tribes, the Scorpaenini, which contains 17 genera, and the Pteroini which contains 5 genera: * Scorpaenini Risso, 1826 ** '' Hipposcorpaena'' Fowler, 1938 ** '' Hoplosebastes'' Schmidt, 1929 ** '' Idiastion'' Eschmeyer, 1965 ** '' Iracundus'' Jordan & Evermann, 1903 ** '' Neomerinthe Fowler, 1935 ** '' Neoscorpaena'' Mandrytsa, 2001 ** ''Parascorpaena'' Bleeker, 1876 ** ''Phenacoscorpius'' Fowler, 1938 ** ''Pogonoscorpius'' Regan, 1908 ** '' Pontinus'' Poey 1860 ** '' Pteroidichthys'' Bleeker, 1856 ** '' Rhinopias'' Gill, 1905 ** ''Scorpaena'' Linnaeus, 1758 ** '' Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William N
William is a masculine given name of Norman French origin.Hanks, Hardcastle and Hodges, ''Oxford Dictionary of First Names'', Oxford University Press, 2nd edition, , p. 276. It became very popular in the English language after the Norman conquest of England in 1066,All Things William"Meaning & Origin of the Name"/ref> and remained so throughout the Middle Ages and into the modern era. It is sometimes abbreviated "Wm." Shortened familiar versions in English include Will, Wills, Willy, Willie, Liam, Bill, and Billy. A common Irish form is Liam. Scottish diminutives include Wull, Willie or Wullie (as in Oor Wullie or the play ''Douglas''). Female forms are Willa, Willemina, Wilma and Wilhelmina. Etymology William is related to the German given name ''Wilhelm''. Both ultimately descend from Proto-Germanic ''*Wiljahelmaz'', with a direct cognate also in the Old Norse name ''Vilhjalmr'' and a West Germanic borrowing into Medieval Latin ''Willelmus''. The Proto-Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emperor Seamounts
An emperor (from la, imperator, via fro, empereor) is a monarch, and usually the sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife ( empress consort), mother (empress dowager), or a woman who rules in her own right and name (empress regnant). Emperors are generally recognized to be of the highest monarchic honor and rank, surpassing kings. In Europe, the title of Emperor has been used since the Middle Ages, considered in those times equal or almost equal in dignity to that of Pope due to the latter's position as visible head of the Church and spiritual leader of the Catholic part of Western Europe. The Emperor of Japan is the only currently reigning monarch whose title is translated into English as "Emperor". Both emperors and kings are monarchs or sovereigns, but both emperor and empress are considered the higher monarchical titles. In as much as there is a strict definition of emperor, it is tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galápagos Islands
The Galápagos Islands ( es, Islas Galápagos) are an archipelago of volcanic islands in the Eastern Pacific, located around the Equator west of the mainland of South America. They form the Galápagos Province of the Republic of Ecuador, with a population of slightly over 33,000 (2020). The province is divided into the Cantons of Ecuador, cantons of San Cristóbal Island, San Cristóbal, Santa Cruz Island (Galápagos), Santa Cruz, and Isabela Island (Galápagos), Isabela, the three most populated islands in the chain. The Galápagos are famous for their large number of Endemism, endemic species, which were studied by Charles Darwin in the 1830s and inception of Darwin's theory, inspired his theory of evolution by means of natural selection. All of these islands are protected as part of Ecuador's Galápagos National Park and Galápagos Marine Reserve, Marine Reserve. Thus far, there is no firm evidence that Polynesian expansion, Polynesians or the indigenous peoples of South Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swim Bladder
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled organ that contributes to the ability of many bony fish (but not cartilaginous fish) to control their buoyancy, and thus to stay at their current water depth without having to expend energy in swimming. Also, the dorsal position of the swim bladder means the center of mass is below the center of volume, allowing it to act as a stabilizing agent. Additionally, the swim bladder functions as a resonating chamber, to produce or receive sound. The swim bladder is evolutionarily homologous to the lungs. Charles Darwin remarked upon this in ''On the Origin of Species''.Darwin, Charles (1859''Origin of Species''Page 190, reprinted 1872 by D. Appleton. Darwin reasoned that the lung in air-breathing vertebrates had derived from a more primitive swim bladder. In the embryonic stages, some species, such as redlip blenny, have lost the swim bladder again, mostly bottom dwellers like the weather fish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lateral Line
The lateral line, also called the lateral line organ (LLO), is a system of sensory organs found in fish, used to detect movement, vibration, and pressure gradients in the surrounding water. The sensory ability is achieved via modified epithelial cells, known as hair cells, which respond to displacement caused by motion and transduce these signals into electrical impulses via excitatory synapses. Lateral lines serve an important role in schooling behavior, predation, and orientation. Fish can use their lateral line system to follow the vortices produced by fleeing prey. Lateral lines are usually visible as faint lines of pores running lengthwise down each side, from the vicinity of the gill covers to the base of the tail. In some species, the receptive organs of the lateral line have been modified to function as electroreceptors, which are organs used to detect electrical impulses, and as such, these systems remain closely linked. Most amphibian larvae and some fully aquati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pectoral 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 ... [...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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