Waryfishes
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Waryfishes
Waryfishes are deep-sea aulopiform fishes in the small family Notosudidae. They are thought to have a circumglobal distribution in subarctic to subantarctic waters. The family name Notosudidae derives from the Greek ''noton'' (back) and Latin ''sudis'' (a fish, ''esox'', the name of salmon). Description Waryfishes are slender, scaled fish, similar in appearance to lancetfishes, but lacking the greatly enlarged dorsal fin. Although the adults are deep-water fish, the larvae inhabit surface waters, and are unique in having teeth on their upper jaws. Waryfishes lack a swim bladder. * Dorsal fin: 9-14 rays * Anal fin: 16-21 rays * Pectoral fin: 10-15 rays * Scales in 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 ...: 44-65 References * {{Taxonbar, from=Q136731 ...
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Aulopiformes
Aulopiformes is a diverse order of marine ray-finned fish consisting of some 15 extant and several prehistoric families with about 45 genera and over 230 species. The common names grinners, lizardfishes and allies, or aulopiforms are sometimes used for this group. The scientific name means "''Aulopus''-shaped", from ''Aulopus'' (the type genus) + the standard fish order suffix "-formes". It ultimately derives from Ancient Greek ''aulós'' (αὐλός, "flute" or "pipe") + Latin ''forma'' ("external form"), the former in reference to the elongated shape of many aulopiforms.FishBase (2000) They are grouped together because of common features in the structure of their gill arches. Indeed, many authors have considered them so distinct as to warrant separation in a monotypic superorder of the Teleostei, under the name Cyclosquamata. However, monotypic taxa are generally avoided by modern taxonomists if not necessary, and in this case a distinct superorder seems indeed unwarra ...
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Scopelosaurus
''Scopelosaurus'' is a genus of waryfishes. The generic name is from the Greek words σκόπελος (''skopelos'', "lanternfish") and σαῦρος (''sauros'', "horse mackerel"). Species There are currently 14 recognized species in this genus: * ''Scopelosaurus adleri'' ( Fedorov, 1967) * '' Scopelosaurus ahlstromi'' Bertelsen, G. Krefft & N. B. Marshall, 1976 (Ahlstrom's waryfish) * ''Scopelosaurus argenteus'' Maul, 1954 (Waryfish) * ''Scopelosaurus craddocki'' Bertelsen, G. Krefft & N. B. Marshall, 1976 * ''Scopelosaurus gibbsi'' Bertelsen, G. Krefft & N. B. Marshall, 1976 * ''Scopelosaurus hamiltoni'' Waite, 1916 (Smallscale waryfish) * ''Scopelosaurus harryi'' Mead, 1953 (Scaly paperbone) * ''Scopelosaurus herwigi'' Bertelsen, G. Krefft & N. B. Marshall, 1976 * ''Scopelosaurus hoedti'' Bleeker, 1860 (Hoedt's waryfish) * ''Scopelosaurus hubbsi'' Bertelsen, G. Krefft & N. B. Marshall, 1976 * '' Scopelosaurus lepidus'' G. Krefft & Maul, 1955 (Blackfin waryfi ...
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Aulopiform
Aulopiformes is a diverse order of marine ray-finned fish consisting of some 15 extant and several prehistoric families with about 45 genera and over 230 species. The common names grinners, lizardfishes and allies, or aulopiforms are sometimes used for this group. The scientific name means "''Aulopus''-shaped", from ''Aulopus'' (the type genus) + the standard fish order suffix "-formes". It ultimately derives from Ancient Greek ''aulós'' (αὐλός, "flute" or "pipe") + Latin ''forma'' ("external form"), the former in reference to the elongated shape of many aulopiforms.FishBase (2000) They are grouped together because of common features in the structure of their gill arches. Indeed, many authors have considered them so distinct as to warrant separation in a monotypic superorder of the Teleostei, under the name Cyclosquamata. However, monotypic taxa are generally avoided by modern taxonomists if not necessary, and in this case a distinct superorder seems indeed unwarranted: to ...
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Dorsal Fin
A dorsal fin is a fin located on the back of most marine and freshwater vertebrates within various taxa of the animal kingdom. Many species of animals possessing dorsal fins are not particularly closely related to each other, though through convergent evolution they have independently evolved external superficial fish-like body plans adapted to their marine environments, including most numerously fish, but also mammals such as cetaceans (whales, dolphins, and porpoises), and even extinct ancient marine reptiles such as various known species of ichthyosaurs. Most species have only one dorsal fin, but some have two or three. Wildlife biologists often use the distinctive nicks and wear patterns which develop on the dorsal fins of large cetaceans to identify individuals in the field. The bony or cartilaginous bones that support the base of the dorsal fin in fish are called ''pterygiophores''. Functions The main purpose of the dorsal fin is to stabilize the animal against rollin ...
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Notosudidae
Waryfishes are deep-sea aulopiform fishes in the small family Notosudidae. They are thought to have a circumglobal distribution in subarctic to subantarctic waters. The family name Notosudidae derives from the Greek ''noton'' (back) and Latin ''sudis'' (a fish, ''esox'', the name of salmon). Description Waryfishes are slender, scaled fish, similar in appearance to lancetfishes, but lacking the greatly enlarged dorsal fin. Although the adults are deep-water fish, the larvae inhabit surface waters, and are unique in having teeth on their upper jaws. Waryfishes lack a swim bladder. * Dorsal fin: 9-14 rays * Anal fin: 16-21 rays * Pectoral fin: 10-15 rays * Scales in 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 ...: 44-65 References * {{Taxonbar, from=Q136731 ...
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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 aquatic adult ...
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Scale (zoology)
In most biological nomenclature, a scale ( grc, λεπίς, lepís; la, squāma) is a small rigid plate that grows out of an animal's skin to provide protection. In lepidopteran (butterfly and moth) species, scales are plates on the surface of the insect wing, and provide coloration. Scales are quite common and have evolved multiple times through convergent evolution, with varying structure and function. Scales are generally classified as part of an organism's integumentary system. There are various types of scales according to shape and to class of animal. Fish scales File:Ganoid scales.png, Ganoid scales on a carboniferous fish ''Amblypterus striatus'' File:Denticules cutanés du requin citron Negaprion brevirostris vus au microscope électronique à balayage.jpg, Placoid scales on a lemon shark (''Negaprion brevirostris'') File:RutilusRutilusScalesLateralLine.JPG, Cycloid scales on a common roach (''Rutilus rutilus'') Fish scales are dermally derived, specifically ...
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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 ...
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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 lu ...
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Scopelosaurus Ahlstromi
''Scopelosaurus ahlstromi'' is a waryfish of the family ''Notosudidae Waryfishes are deep-sea aulopiform fishes in the small family Notosudidae. They are thought to have a circumglobal distribution in subarctic to subantarctic waters. The family name Notosudidae derives from the Greek ''noton'' (back) and Latin ''s ...'', found in all oceans, at depths of down to 500 m. Its length is between 15 and 25 cm. References * * Tony Ayling & Geoffrey Cox, ''Collins Guide to the Sea Fishes of New Zealand'', (William Collins Publishers Ltd, Auckland, New Zealand 1982) {{Taxonbar, from=Q3375363 Notosudidae Fish described in 1976 ...
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Swim Bladder
The swim bladder, gas bladder, fish maw, or air bladder is an internal gas-filled Organ (anatomy), 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 Dorsum (biology), dorsal position of the swim bladder means the center of mass is below the centroid, center of volume, allowing it to act as a stabilizing agent. Additionally, the swim bladder functions as a resonator, resonating chamber, to produce or receive sound. The swim bladder is evolutionarily Homology (biology), 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 Ophioblennius atlanticus, ...
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Ahliesaurus
''Ahliesaurus'' is a genus of waryfishes. Species There are currently two recognized species in this genus: * '' Ahliesaurus berryi'' Bertelsen, G. Krefft & N. B. Marshall, 1976 * '' Ahliesaurus brevis'' Bertelsen, G. Krefft & N. B. Marshall, 1976 References Notosudidae Taxa named by Erik Bertelsen Taxa named by Norman Bertram Marshall {{Aulopiformes-stub ...
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