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Drepane (fish)
''Drepane'' is a genus of marine and brackish water ray-finned fishes, known commonly as the sicklefishes. It is the only genus in the monotypic percomorph family Drepaneidae. These fish occur in the Indian and western Pacific Oceans, and in the eastern Atlantic near Africa. Taxonomy ''Drepane'' was first proposed as a genus in 1831 by the French zoologist Georges Cuvier. In 1917 David Starr Jordan designated ''Chaetodon punctatus'', which had been described by Linnaeus in the 10th edition of ''Systema Naturae'' published in 1758 with its type locality given as Asia, as its type species. In 1872 Theodore Gill classified the genus within the family Drepaneidae and it is the only genus classified within that family. The 5th edition of Fishes of the World classifies the Drepaneidae within the order Moroniformes alongside the Moronidae and Ephippidae. However, other authorities have found that the Moronidae is not closely related to the other two families and classify the Drepaneida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodore Nicholas Gill
Theodore Nicholas Gill (March 21, 1837 – September 25, 1914) was an American ichthyologist, mammalogist, malacologist, and librarian. Career Born and educated in New York City under private tutors, Gill early showed interest in natural history. He was associated with J. Carson Brevoort in the arrangement of the latter's entomological and ichthyological collections before going to Washington, DC, in 1863 to work at the Smithsonian Institution. He catalogued mammals, fishes, and mollusks most particularly, although he maintained proficiency in other orders of animals. He was librarian at the Smithsonian and also senior assistant to the Library of Congress. He was elected as a member of the American Philosophical Society in 1867. Gill was professor of zoology at George Washington University. He was also a member of the Megatherium Club at the Smithsonian Institution in Washington, DC. Fellow members frequently mocked him for his vanity. He was president of the American Associati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fishes Of The World
''Fishes of the World'' is a standard reference for the systematics of fishes. It was first written in 1976 by the American ichthyologist Joseph S. Nelson (1937–2011). Now in its fifth edition (2016), the work is a comprehensive overview of the diversity and classification of the 30,000-plus fish species known to science. The book begins with a general overview of ichthyology, although it is not self-contained. After a short section on Chordata and non-fish taxa, the work lists all known fish families in a systematic fashion. Each family is given at least one paragraph, and usually a body outline drawing; large families have subfamilies and tribes described as well. Notable genera and species are mentioned, though the book does generally not deal with the species-level diversity. The complexities of the higher taxa are described succinctly, with many references for difficult points. The book does not contain any color illustrations. The fourth edition was the first to inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anal Fin
Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin, fish fins have no direct connection with the back bone and are supported only by muscles. Fish fins are distinctive anatomical features with varying structures among different clades: in ray-finned fish (Actinopterygii), fins are mainly composed of bony spines or rays covered by a thin stretch of scaleless skin; in lobe-finned fish ( Sarcopterygii) such as coelacanths and lungfish, fins are short rays based around a muscular central bud supported by jointed bones; in cartilaginous fish ( Chondrichthyes) and jawless fish ( Agnatha), fins are fleshy " flippers" supported by a cartilaginous skeleton. Fins at different locations of the fish body serve different purposes, and are divided into two groups: the midsagittal ''unpaired fins'' and the more laterally located ''paired fins''. Unpaired fins are pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dorsal Fin
A dorsal fin is a fin on the back of most marine and freshwater vertebrates. Dorsal fins have evolved independently several times through convergent evolution adapting to marine environments, so the fins are not all homologous. They are found in most fish, in mammals such as whales, and in extinct ancient marine reptiles such as ichthyosaurs. Most 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 whales to identify individuals in the field. The bones or cartilages that support the dorsal fin in fish are called pterygiophores. Functions The main purpose of the dorsal fin is usually to stabilize the animal against rolling and to assist in sudden turns. Some species have further adapted their dorsal fins to other uses. The sunfish uses the dorsal fin (and the anal fin Fins are moving appendages protruding from the body of fish that interact with water to ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Gottlob Schneider
Johann Gottlob Theaenus Schneider (18 January 1750 – 12 January 1822) was a German classicist and naturalist. Biography Schneider was born at Collm in Saxony. In 1774, on the recommendation of Christian Gottlob Heine, he became secretary to the famous Strasbourg scholar Richard François Brunck, and in 1811, became professor of ancient languages and eloquence at Breslau (chief librarian, 1816) where he died in 1822. Works Of his numerous works the most important was his ''Kritisches griechisch-deutsches Handwörterbuch'' (1797–1798), the first independent work of the kind since Stephanus's ''Thesaurus'', and the basis of F. Passow's and all succeeding Greek lexicons (including, therefore, the contemporary standard ''A Greek-English Lexicon''). A special improvement was the introduction of words and expressions connected with natural history and science. In 1801, he corrected and expanded re-published Marcus Elieser Bloch's ''Systema Ichthyologiae iconibus cx illustratu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marcus Elieser Bloch
Marcus Elieser Bloch (1723–1799) was a German physician and naturalist who is best known for his contribution to ichthyology through his multi-volume catalog of plates illustrating the fishes of the world. Brought up in a Hebrew-speaking Jewish family, he learned German and Latin and studied anatomy before settling in Berlin as a physician. He amassed a large natural history collection, particularly of fish specimens. He is generally considered one of the most important ichthyologists of the 18th century, and wrote many papers on natural history, comparative anatomy, and physiology. Life Bloch was born at Ansbach in 1723 where his father was a Torah writer and his mother owned a small shop. Educated at home in Hebrew literature he became a private tutor in Hamburg for a Jewish surgeon. Here he learned German, Latin and anatomy. He then studied medicine in Berlin and received a doctorate in 1762 from Frankfort on the Oder with a treatise on skin disorders. He then became a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drepane Longimana
''Drepane longimana'', commonly known as the concertina fish, barred sicklefish, or banded sicklefish, is a fish native to the Indo-Pacific and northern Australia. Taxonomy ''Drepane longimana'' was first formally described as ''Chaetodon longimanus'' in 1801 by the German naturalists Marcus Elieser Bloch and Johann Gottlob Theaenus Schneider with its type locality given as Tranquebar in India. It is one of the three species in the genus ''Drepane –'' the only genus in the monogeneric family Drepaneidae, which is classified in the order Moroniformes. The specific name ''longimana'' means “long handed” and is a reference to the long sickle-shaped pectoral fins which reach the caudal peduncle. Description ''Drepane longimana'' has an oval shaped, strongly compressed body with a depth of 120% to 130% of its standard length. The snout has a straight or concave profile with no scales on the snout, cheeks and preoperculum. The lower edge of the preoperculum is serrated. It has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balthazar Osório
Balthazar, Balthasar, Baltasar, or Baltazar may refer to: Arts, entertainment and media * ''Balthazar'' (novel), by Lawrence Durrell, 1958 * ''Balthasar'', an 1889 book by Anatole France * ''Professor Balthazar'', a Croatian animated TV series, 1967–1978 * ''Balthazar'' (TV series), a 2018 French crime thriller drama * Balthazar (band), a Belgian indie pop and rock group * DJ Balthazar, a Bulgarian group * ''Au hasard Balthazar'', a 1966 French film directed by Robert Bresson People Footballers * Baltasar (footballer) (born 1966), Portuguese footballer * Baltasar Gonçalves (born 1948), or Baltasar, Portuguese footballer * Baltazar (footballer, born 1926) (1926–1997), Oswaldo da Silva, Brazilian football striker * Baltasar (footballer, born 1933) (1933–2019), Egydio Felizardo, Brazilian football striker * Baltazar (footballer, born 1959), Baltazar Maria de Morais Júnior, Brazilian football striker * Marco Balthazar (born 1983), Brazilian footballer * Batata (footba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drepane Africana
The African sicklefish (''Drepane africana'') is a species of ray-finned fish belonging to the Family (biology), family Drepaneidae, the sicklefishes. This fish is found in the costal waters of the eastern Atlantic Ocean from the Canary Islands and Mauritania south to Angola, including the Cape Verde, Cape Verde Islands and the islands of the Gulf of Guinea. It is a coastal species found over sandy and muddy bottoms between depths of , moving into coastal lagoons at sexual maturity. Taxonomy The African sicklefish was first formally Species description, described as ''Drepane punctata africana'' in 1892 by the Portuguese ichthyologist and carcinologist Balthazar Osório with its Type locality (biology), type locality given as the west coasts of the islands of São Tomé Island, São Tomé and Príncipe, the two islands which make up the nation of São Tomé and Príncipe. It is one of three species in the genus ''Drepane (fish), Drepane'', the only genus in the Monotypic taxon, mon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sickle
A sickle, bagging hook, reaping-hook or grasshook is a single-handed agricultural tool designed with variously curved blades and typically used for harvesting or reaping grain crops, or cutting Succulent plant, succulent forage chiefly for feeding livestock. Falx was a synonym, but was later used to mean any of a number of tools that had a curved blade that was sharp on the inside edge. Since the beginning of the Iron Age hundreds of region-specific variants of the sickle have evolved, initially of iron and later steel. This great diversity of sickle types across many cultures can be divided into smooth or serrated blades, both of which can be used for cutting either green grass or mature cereals using slightly different techniques. The serrated blade that originated in prehistoric sickles still dominates in the reaping of grain and is even found in modern grain-harvesting machines and in some kitchen knives. History Pre-Neolithic The development of the sickle in Mesopota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthuriformes
Acanthuriformes is a large, diverse order of mostly marine ray-finned fishes, part of the Percomorpha clade. In the past, members of this clade were placed in the suborders Acanthuroidea and Percoidea of the order Perciformes, but this treatment is now considered paraphyletic. This order contains many of the iconic tropical reef fish groups, such as surgeonfish, marine angelfish, butterflyfish, rabbitfish, grunts, and snappers. It also contains widespread, economically important food and sport fishes, such as drums, temperate basses, and porgies. The only pelagic member of the group is the louvar. Classification The following classification is based on Eschmeyer's Catalog of Fishes (2025): * Order Acanthuriformes ** Family Gerreidae Bleeker, 1859 (mojarras) ** Family Sillaginidae Richardson, 1846 (sillagos) ** Family Moronidae Jordan & Evermann, 1896 (temperate basses) ** Family Drepaneidae Gill, 1872 (sicklefishes) ** Family Ephippidae Bleeker, 1859 (spadefishes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ephippidae
Ephippidae is a family of percomorph fishes, the spadefishes, in the order Moroniformes. These fishes are found in the tropical and temperate oceans of the world, except for the central Pacific. Taxonomy Ephippidae was first proposed as a family in 1859 by the Dutch herpetologist and ichthyologist Pieter Bleeker. The 5th edition of the ''Fishes of the World'' classifies this family in the order Moroniformes with the Moronidae and Drepaneidae. Other authorities place this family alongside the Drepaneidae in the order Ephippiformes with the Moronidae classified as ''incertae sedis'' in the series Eupercaria. Other authorities classify all three families in the Moroniformes ''sensu'' ''Fishes of the World'' in the Acanthuriformes. Genera Ephippidae contains the following genera, 8 extant and 3 extinct ( means extinct): The extinct genus '' Exellia'' is classified within the Ephippidae by some authorities, other authorities place it in the family Exellidae. Characteristics Ephi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
