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Knifejaw
''Oplegnathus'' is currently the sole recognized genus in the knifejaw family (Oplegnathidae) of marine centrarchiform ray-finned fishes. The largest, the Cape knifejaw, can reach a maximum length around 90 cm (35 in). Knifejaws have teeth fused into a parrot-like beak in adulthood. They feed on barnacles and mollusks, and are fished commercially. They are native to the Indian and Pacific Oceans. The earliest records of knifejaws are fossilized beaks, with attached teeth, known from middle Eocene-aged sediments of the La Meseta Formation of Antarctica. Their early occurrence in Antarctica supports it having temperate climate during the Eocene, and that knifejaws had a wider distribution in the past than today. Species The currently recognized species in this genus are: * '' Oplegnathus conwayi'' J. Richardson, 1840, 1840 (Cape knifejaw) * '' Oplegnathus fasciatus'' (Temminck & Schlegel, 1844) (barred knifejaw or striped beakfish) * ''Oplegnathus insignis'' ( Kne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplegnathus Punctatus
''Oplegnathus punctatus'', commonly known as the spotted knifejaw, is one of seven species in the Oplegnathidae family of knifejaws. These perciform fish, an order of ray-finned fish that are "perch-like", characteristically have teeth fused into a parrot-like beak during adulthood. They diagnostically have a single dorsal fin and body covered in small scales that are known as ctenoid scales. Knifejaws are typically distributed in the Indian and Western Pacific Ocean, near southern parts of the Korean Peninsula, Taiwan, China, Japan, and Hawaii. Physical morphology ''Oplegnathus punctatus'', has a black-brown body surrounded in irregular black spots. Their average body size being around , the largest being in total length with fork length. With their fusion of a beak-like tooth, there is a continuous series of arrow-shaped dental units that are surrounded by bone. They can move from the base towards the edge as time goes on. Early on, the teeth begin to form a thick layer of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplegnathus Fasciatus
The barred knifejaw (''Oplegnathus fasciatus''), also known as the striped beakfish or rock bream, is a species of marine ray-finned fish, from the family Oplegnathidae. It is commonly native to the north-western Pacific Ocean, though a smattering of records exist from other localities in the eastern Pacific such as Hawaii and Chile. Recently introduced – likely via ballast water – in the central Mediterranean, it is found very rarely from Malta to the northern Adriatic. There is no listed conservation status for this species, though it is farmed for consumption and angling in many Asian countries suggesting it is common. The barred knifejaw is an inhabitant of rocky reefs and occurs at depths from 1 to 10 m (3 to 33 ft). Juvenile members of this species can be found with patches of drifting seaweed. This species can reach a total length of 80 cm (31 in), with the greatest recorded weight for this species of 6.4 kg (14 lb). As with all members of the Oplegnathus family, the ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barred Knifejaw
The barred knifejaw (''Oplegnathus fasciatus''), also known as the striped beakfish or rock bream, is a species of marine ray-finned fish, from the Family (biology), family Oplegnathidae. It is commonly native to the north-western Pacific Ocean, though a smattering of records exist from other localities in the eastern Pacific such as Hawaii and Chile. Recently introduced – likely via ballast water – in the central Mediterranean, it is found very rarely from Malta to the northern Adriatic. There is no listed conservation status for this species, though it is farmed for consumption and angling in many Asian countries suggesting it is common. The barred knifejaw is an inhabitant of rocky reefs and occurs at depths from 1 to 10 m (3 to 33 ft). Juvenile members of this species can be found with patches of drifting seaweed. This species can reach a total length of 80 cm (31 in), with the greatest recorded weight for this species of 6.4 kg (14 lb). As with all members of the Oplegnat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplegnathus Robinsoni
''Oplegnathus robinsoni'', the Natal knifejaw, or also commonly known as Cuckoo Bass and Natalse Kraaibek, is a ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ... that is endemic to the east coast of South Africa and Mozambique. They occur northwards from Transkei.''Natal Knifejaw''. (2023, July 27). SAAMBR. The South African Association for Marine Biological Research. https://saambr.org.za/2023/07/27/natal-knifejaw/ Appearance The fish is grey-brown to dark brown color and may be mottled. Juveniles, on the other hand, are yellow in color with several vertical black stripes along the body from the eye to tail. A parrot-like beak and teeth that are a part of the mouth allow it to tear organisms off of surfaces. The Natal knifejaw has a compressed body, with a high ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplegnathidae
''Oplegnathus'' is currently the sole recognized genus in the knifejaw family (Oplegnathidae) of marine centrarchiform ray-finned fishes. The largest, the Cape knifejaw, can reach a maximum length around 90 cm (35 in). Knifejaws have teeth fused into a parrot-like beak in adulthood. They feed on barnacles and mollusks, and are commercial fishing, fished commercially. They are native to the Indian Ocean, Indian and Pacific Oceans. The earliest records of knifejaws are fossilized beaks, with attached teeth, known from middle Eocene-aged sediments of the La Meseta Formation of Antarctica. Their early occurrence in Antarctica supports it having temperate climate during the Eocene, and that knifejaws had a wider distribution in the past than today. Species The currently recognized species in this genus are: * ''Oplegnathus conwayi'' John Richardson (naturalist), J. Richardson, 1840, 1840 (Cape knifejaw) * ''Oplegnathus fasciatus'' (Coenraad Jacob Temminck, Temminck & Her ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplegnathus Insignis
''Oplegnathus'' is currently the sole recognized genus in the knifejaw family (Oplegnathidae) of marine centrarchiform ray-finned fishes. The largest, the Cape knifejaw, can reach a maximum length around 90 cm (35 in). Knifejaws have teeth fused into a parrot-like beak in adulthood. They feed on barnacles and mollusks, and are fished commercially. They are native to the Indian and Pacific Oceans. The earliest records of knifejaws are fossilized beaks, with attached teeth, known from middle Eocene-aged sediments of the La Meseta Formation of Antarctica. Their early occurrence in Antarctica supports it having temperate climate during the Eocene, and that knifejaws had a wider distribution in the past than today. Species The currently recognized species in this genus are: * '' Oplegnathus conwayi'' J. Richardson, 1840, 1840 (Cape knifejaw) * '' Oplegnathus fasciatus'' ( Temminck & Schlegel, 1844) ( barred knifejaw or striped beakfish) * '' Oplegnathus insignis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centrarchiform
Centrarchiformes is an order of ray-finned fish, previously included amongst the perciformes. Froese, R. and D. Pauly. Editors. (2023). FishBase. Centrarchiformes. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=1517557 on 2023-11-12 The order Centrarchiformes is not recognized in the 5th Edition (2016) of ''Fishes of the World'', but is accepted on the World Register of Marine Species in November 2023, Fishbase, and ''Eschmeyer's Catalog of Fishes''. Many centrarchiforms look essentially perch-like, featuring a stocky build and a spine-bearing dorsal fin, and range in size from in length (for '' Elassoma gilberti),'' to for the '' Maccullochella peelii.'' The earliest fossils of this group are of '' Percichthys'' from the Early Paleocene of Bolivia, although this status is tentative. If these remains are not of a percichthyid, then the earliest known centrarchiform fossils are of oplegnathids from the Early Eoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplegnathus Conwayi
''Oplegnathus conwayi'', the Cape knifejaw, is an endemic ray-finned fish that only occurs between Table Bay Table Bay (Afrikaans: ''Tafelbaai'') is a natural bay on the Atlantic Ocean overlooked by Cape Town and is at the northern end of the Cape Peninsula, which stretches south to the Cape of Good Hope. It was named because it is dominated by the fl ... and the Aliwal Bank on the South African coast.Sea Fishes of Southern Africa. Rudy van der Elst & Dennis King. 2006. ISBN 978-1-77007-345-6 References Oplegnathidae {{Centrarchiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
La Meseta Formation
The La Meseta Formation is a sedimentary sequence deposited during much of the Paleogene on Seymour Island off the coast of the Antarctic Peninsula. It is noted for its fossils, which include both marine organisms and the only terrestrial vertebrate fossils from the Cenozoic of Antarctica. In some treatments, the La Meseta Formation is restricted to just the older Thanetian to Lutetian-aged strata, with the younger Bartonian to Rupelian strata treated as the overlying Submeseta Formation. However, other papers instead treat the Submeseta Formation as an allomember of the La Meseta Formation. Description La Meseta Formation lies unconformably on the Cretaceous Lopez de Bertodano Formation. It is an approximately thick sequence of poorly consolidated sandstones and siltstones. The depositional environment was probably coastal, deltaic or estuarine in character. The top of the sequence is an erosional unconformity to Pleistocene glacial gravels. La Meseta Formation is one of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oplegnathus Peaolopesi
''Oplegnathus peaolopesi'', the Mozambique knifejaw, is a ray-finned fish that occurs northwards from Sodwana Bay. It is a rare species. References * Coastal Fishes of Southern Africa. Phil Phil may refer to: * Phil (given name), a shortened version of masculine and feminine names * Phill, a given name also spelled "Phil" * Phil, Kentucky, United States * Phil (film), ''Phil'' (film), a 2019 film * -phil-, a lexical fragment, used as ... & Elaine Heemstra. 2004. ISBN 1-920033-01-7 * http://fishbase.org/summary/Oplegnathus-peaolopesi.html Oplegnathidae {{Centrarchiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edgar Ravenswood Waite
Edgar Ravenswood Waite (5 May 1866 – 19 January 1928) was a British/Australian zoologist, ichthyologist, herpetologist, and ornithologist. Waite was born in Leeds, Yorkshire, England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ..., the second son of John Waite, a bank clerk, and his wife Jane, ''née'' Vause. Waite was educated at Leeds Parish Church Middle Class School and at the Victoria University of Manchester. In 1888 he was appointed sub-curator of the Leeds Museum and three years later was made curator. On 7 April 1892 Waite married Rose Edith Green at St. Matthew's parish church, Leeds. In 1893 Waite became zoologist at the Australian Museum, Sydney, he was the Fish Curator there from 1893 to 1906. Waite accompanied Charles Hedley of the Australian Museum on the 189 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
