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Thaumatichthys
The Wonderfish (''Thaumatichthys'') is a genus of deep-sea anglerfish in the family Thaumatichthyidae, with three known species. Its scientific name means "wonder-fish" in Greek; oceanographer Anton Bruun described these fishes as "altogether one of the oddest creatures in the teeming variety of the fish world." In contrast to other anglerfishes, the bioluminescent lure (called the "esca") of ''Thaumatichthys'' is located inside its cavernous mouth. They are worldwide in distribution and are ambush predators living near the ocean floor. Taxonomy The first specimen of ''Thaumatichthys'' was collected by an American expedition in Indonesia in 1908 and given the species name ''pagidostomus'' ("trap-mouthed"). A subsequent specimen from the north Atlantic was placed by Regan and Trewavas (1932) into a new genus, ''Amacrodon'', based on differences in dentition. Bruun assigned a specimen collected by the Galathea Expedition of 1950–52 to a third genus, ''Galatheathauma'' ("Ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatichthys Axeli
Prince Axel's wonderfish (''Thaumatichthys axeli'') is a bottom-dwelling deep-sea anglerfish of the family Thaumatichthyidae. ''Thaumatichthys axeli'' lives at a depth of around 3,600 meters (in the abyssal zone), deeper than any other member of the genus ''Thaumatichthys''. As with other members of the family, they possess a distinctive forked light organ inside their mouth, which they use to lure prey. Large, curved teeth "fringe the upper jaw like a comb". Specimens have been found measuring up to about 50 cm.Bruun, A. F., et al. (1956). The Galathea Deep Sea Expedition, 1950–52.. London: Allen and Unwin. pp. 174-177 History ''Thaumatichthys axeli'' was discovered during the Galathea expedition of 1950–1952. Anton Bruun described it as "unquestionably the strangest catch of the Galathea Expedition, and altogether one of the oddest creatures in the teeming variety of the fish world." On discovery, it was thought to represent a new genus, and was given the name ''Gal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatichthys Binghami
''Thaumatichthys binghami'' is a species of wolftrap angler known from the western central Atlantic Ocean, where it occurs at a depth of . This species is similar to '' T. axeli'', except that its esca bears 2–3 pairs of lateral lobes that are elongated into tapering filaments in the largest individuals, and the uppermost medial appendage on the esca is finger A finger is a limb of the body and a type of digit, an organ of manipulation and sensation found in the hands of most of the Tetrapods, so also with humans and other primates. Most land vertebrates have five fingers ( Pentadactyly). Chambers ...-like and tapering. References * binghami Fish of the Atlantic Ocean Fish described in 1927 Taxa named by Albert Eide Parr {{Lophiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatichthys Pagidostomus
''Thaumatichthys pagidostomus'' is a species of wonderfish found in the Indian and Atlantic Oceans at a depth of around . This species grows to a length of TL. This species has relatively longer premaxillaries than the other species (measuring 33% of standard length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish m ...), and the anterior premaxillary teeth are long. References * Thaumatichthyidae Fish described in 1912 {{Lophiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaumatichthyidae
Thaumatichthyidae, the wolftrap anglers, is a small family of deep-sea anglerfishes, containing two genera and eight species found in all oceans. They are commonly known as wolftrap anglers or wolftrap seadevils because of their distinctive upper jaws with movable premaxillaries that can be lowered to form a cage-like trap around the much shorter lower jaw. They are related to (and were formerly placed within) the family Oneirodidae The dreamers are a family, Oneirodidae, of deep-sea anglerfishes in the order Lophiiformes. They are the largest and most diverse group of deep-sea anglerfish, and also the least well known with 16 genera represented by only one, two, or three f .... References Deep sea fish Marine fish families {{Lophiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lasiognathus
The complete anglerfish (''Lasiognathus'') is a genus of deep-sea anglerfish in the family Thaumatichthyidae, with six species known from the Atlantic and Pacific Oceans. Its lure apparatus appears to consist of a fishing rod (the projecting basal bone or pteropterygium), a fishing line (the illicium, a modified dorsal fin ray), bait (the bioluminescent esca), and hooks (large dermal denticles). It is also distinctive for an enormous upper jaw with premaxillaries that can be folded down to enclose the much shorter lower jaw. Systematics The closest relative of ''Lasiognathus'' is '' Thaumatichthys'', which also has enlarged and hinged premaxillaries, escal denticles, and a branched upper operculum. However, there are significant differences between those two taxa as well, which include characteristics that ''Lasiognathus'' shares with the oneirodids not found in ''Thaumatichthys''. Bertelsen and Struhsaker (1977) noted that, given the undefined cladistics of the Oneirodid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Esca
The anglerfish are fish of the teleost order Lophiiformes (). They are bony fish named for their characteristic mode of predation, in which a modified luminescent fin ray (the esca or illicium) acts as a lure for other fish. The luminescence comes from symbiotic bacteria, which are thought to be acquired from seawater, that dwell in and around the sea. Some anglerfish are notable for extreme sexual dimorphism and sexual symbiosis of the small male with the much larger female, seen in the suborder Ceratioidei, the deep sea anglerfish. In these species, males may be several orders of magnitude smaller than females. Anglerfish occur worldwide. Some are pelagic (dwelling away from the sea floor), while others are benthic (dwelling close to the sea floor). Some live in the deep sea (such as the Ceratiidae), while others on the continental shelf, such as the frogfishes and the Lophiidae (monkfish or goosefish). Pelagic forms are most often laterally compressed, whereas the benth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglerfish
The anglerfish are fish of the teleost order Lophiiformes (). They are bony fish named for their characteristic mode of predation, in which a modified luminescent fin ray (the esca or illicium) acts as a lure for other fish. The luminescence comes from symbiotic bacteria, which are thought to be acquired from seawater, that dwell in and around the sea. Some anglerfish are notable for extreme sexual dimorphism and sexual symbiosis of the small male with the much larger female, seen in the suborder Ceratioidei, the deep sea anglerfish. In these species, males may be several orders of magnitude smaller than females. Anglerfish occur worldwide. Some are pelagic (dwelling away from the sea floor), while others are benthic (dwelling close to the sea floor). Some live in the deep sea (such as the Ceratiidae), while others on the continental shelf, such as the frogfishes and the Lophiidae (monkfish or goosefish). Pelagic forms are most often laterally compressed, whereas the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hugh McCormick Smith
Hugh McCormick Smith, also H. M. Smith (November 21, 1865 – September 28, 1941) was an American ichthyologist and administrator in the United States Bureau of Fisheries. Biography Smith was born in Washington, D.C. In 1888, he received a Doctor of Medicine from Georgetown University; then, in 1908, a Doctor of Law from the Dickinson School of Law at Dickinson College. He began working for the United States Fish Commission (formally, the United States Commission on Fish and Fisheries) in 1886 as an assistant. He directed the scientific research center there from 1897 to 1903. From 1901 to 1902, he directed the Marine Biological Laboratory at Woods Hole, Massachusetts. At the same time, he was on the faculty at Georgetown, teaching medicine from 1888 to 1902 and histology from 1895 to 1902. From 1907 to 1910, Smith led the scientific party aboard the U.S. Bureau of Fisheries (successor organization of the U.S. Fish Commission) research ship during her two-and-a-half-year expedit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dermal Denticle
A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection and colouration, as well as possible hydrodynamic advantages. The term ''scale'' derives from the Old French , meaning a shell pod or husk. Scales vary enormously in size, shape, structure, and extent, ranging from strong and rigid armour plates in fishes such as shrimpfishes and boxfishes, to microscopic or absent in fishes such as eels and anglerfishes. The morphology of a scale can be used to identify the species of fish it came from. Scales originated within the jawless ostracoderms, ancestors to all jawed fishes today. Most bony fishes are covered with the cycloid scales of salmon and carp, or the ctenoid scales of perch, or the ganoid scales of sturgeons and gars. Cartilaginous fishes (sharks and rays) are covered with placoid scales. Some species ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operculum (fish)
The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills; it is also used for respiration and feeding. Anatomy The opercular series contains four bone segments known as the preoperculum, suboperculum, interoperculum and operculum. The preoperculum is a crescent-shaped structure that has a series of ridges directed posterodorsally to the organisms canal pores. The preoperculum can be located through an exposed condyle that is present immediately under its ventral margin; it also borders the operculum, suboperculum, and interoperculum posteriorly. The suboperculum is rectangular in shape in most bony fishy and is located ventral to the preoperculum and operculum components. It is the thinnest bone segment out of the opercular series and is located directly above the gills. The interoperculum is triangular shaped and borders the suboperculum posterodorsally and the preoperculum anterodorsa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oneirodidae
The dreamers are a family, Oneirodidae, of deep-sea anglerfishes in the order Lophiiformes. They are the largest and most diverse group of deep-sea anglerfish, and also the least well known with 16 genera represented by only one, two, or three female specimens.Pietsch, Theodore W. and Kenaley, Christopher P. (2005)Oneirodidae. Dreamers.Version 5 November 2005 (under construction)The Tree of Life Web Project There are sixty-two species within the family, and that contains more females than males. They are found in deep, temperate waters around the world. They are small fish, the largest species only growing to about in total length Fish measurement is the measuring of individual fish and various parts of their anatomies. These data are used in many areas of ichthyology, including taxonomy and fisheries biology. Overall length * Standard length (SL) is the length of a fish .... The largest female size that is known is about 370-mm and the largest known male is 16.5 mm. Fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Eide Parr
Albert Eide Parr (15 August 1900 – 16 July 1991) was a Norwegian-born, American marine biologist, zoologist and oceanographer. He was the director of the American Museum of Natural History from 1942 to 1959. '' Parrosaurus missouriensis'', a species of plant-eating dinosaur, is named after him. Biography Albert Eide Parr was born and grew up in Bergen, Norway. His father, Thomas Johannes Lauritz Parr, was a professor at Bergen Cathedral School. He became well acquainted with Jørgen Brunchorst, director at the Bergen Museum and developed an early interest in marine biology. He studied at the University of Oslo (1921–24) and became cand.mag. in 1925. He worked was an assistant in zoology at the Bergen Museum from 1924–26. He and his wife traveled to the United States in 1926 where Parr is said to have first found work "sweeping floors" at the New York Aquarium in New York City. In 1927, he met American financier and philanthropist Harry Payne Bingham. They launched ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
