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Alepocephaliformes
Alepocephaliformes is an order of ray-finned fish. It was previously classified as the suborder Alepocephaloidei of the order Argentiniformes The Argentiniformes are an order of ray-finned fish whose distinctness was recognized only fairly recently. In former times, they were included in the Osmeriformes (typical smelt and allies) as suborder Argentinoidei. That term refers only to .... Subdivisions * Family Alepocephalidae (typical slickheads) (includes former families Bathylaconidae; Leptochilichthyidae) * Family Platytroctidae (including Searsiidae) References Ray-finned fish orders {{Rayfinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alepocephaliformes
Alepocephaliformes is an order of ray-finned fish. It was previously classified as the suborder Alepocephaloidei of the order Argentiniformes The Argentiniformes are an order of ray-finned fish whose distinctness was recognized only fairly recently. In former times, they were included in the Osmeriformes (typical smelt and allies) as suborder Argentinoidei. That term refers only to .... Subdivisions * Family Alepocephalidae (typical slickheads) (includes former families Bathylaconidae; Leptochilichthyidae) * Family Platytroctidae (including Searsiidae) References Ray-finned fish orders {{Rayfinned-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platytroctidae
The tubeshoulders are a family, Platytroctidae, of ray-finned fish belonging to the order Alepocephaliformes Alepocephaliformes is an order of ray-finned fish. It was previously classified as the suborder Alepocephaloidei of the order Argentiniformes The Argentiniformes are an order of ray-finned fish whose distinctness was recognized only fairly .... They are found throughout the world, except for the Mediterranean Sea. Tubeshoulders live at moderate depths of , and some have light-producing organs. They are generally small to medium fish, ranging from in length. Genera The family contains the following genera: * '' Barbantus'' * '' Holtbyrnia'' * '' Matsuichthys'' * '' Maulisia'' * '' Mentodus'' * '' Mirorictus'' * '' Normichthys'' * '' Pectinantus'' * '' Persparsia'' * '' Platytroctes'' * '' Sagamichthys'' * '' Searsia'' * '' Searsioides'' * '' Vachalia'' References * Ray-finned fish families {{Alepocephaliformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alepocephalidae
Slickheads, also known as nakedheads or smoothheads, are deep water fishes that belong to the family Alepocephalidae. They are most commonly found in the bathypelagic layer, which is approximately 3000m below the surface. They get their name from the lack of scales on their heads. Similarly, the scientific name is from the Greek ᾰ̓- (''a''-, "not"); λέπος (''lepos'', "scale"); and κεφαλή (''kephalē'', "head"). It has about 22 genera with ca. 96 species. In Japanese they are known as . Description The following characteristics are generally shared by the Alepocephalidae family: Their mouths consist of 80 to 100 razor-sharp teeth, being rather small and feeble. They are shaped in an eel-like elongation, with large eyes, gill rakers that range from moderate to long and numerous, and spineless fins. The single dorsal fin is located posterior to the midpoint of the body and there is no adipose dorsal fin present, there is a pectoral fin ranging from small to rudimenta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ray-finned Fish
Actinopterygii (; ), members of which are known as ray-finned fishes, is a class of bony fish. They comprise over 50% of living vertebrate species. The ray-finned fishes are so called because their fins are webs of skin supported by bony or horny spines (rays), as opposed to the fleshy, lobed fins that characterize the class Sarcopterygii (lobe-finned fish). These actinopterygian fin rays attach directly to the proximal or basal skeletal elements, the radials, which represent the link or connection between these fins and the internal skeleton (e.g., pelvic and pectoral girdles). By species count, actinopterygians dominate the vertebrates, and they constitute nearly 99% of the over 30,000 species of fish. They are ubiquitous throughout freshwater and marine environments from the deep sea to the highest mountain streams. Extant species can range in size from ''Paedocypris'', at , to the massive ocean sunfish, at , and the long-bodied oarfish, at . The vast majority of Actinoptery ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentiniformes
The Argentiniformes are an order of ray-finned fish whose distinctness was recognized only fairly recently. In former times, they were included in the Osmeriformes (typical smelt and allies) as suborder Argentinoidei. That term refers only to the suborder of marine smelts and barreleyes in the classification used here, with the slickheads and allies being the Alepocephaloidei. These suborders were treated as superfamilies Argentinoidea and Alepocephaloidea, respectively, when the present group was still included in the Osmeriformes. They contain six or seven families with almost 60 genera and at least 228 species. A common name for the group is marine smelts and allies, but this is rather misleading since the "freshwater" smelts of the Osmeridae also live predominantly in the ocean.FishBase (2006)Order Osmeriformes Version of 2006-OCT-09. Retrieved 2009-SEP-28. pp. 190-194 Description and ecology The Argentiniformes are smallish silvery or dark and generally bathypelagic oc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bathylaconidae
Bathylaconidae is a former family of marine smelts found in deep oceanic waters. This family is now included in Alepocephalidae Slickheads, also known as nakedheads or smoothheads, are deep water fishes that belong to the family Alepocephalidae. They are most commonly found in the bathypelagic layer, which is approximately 3000m below the surface. They get their name from ....R. Betancur-Rodriguez, E. Wiley, N. Bailly, A. Acero, M. Miya, G. Lecointre, G. Ortí''Phylogenetic Classification of Bony Fishes – Version 4''(2016) References Alepocephalidae {{Argentiniformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptochilichthyidae
''Leptochilichthys'' is a genus of marine smelts containing four species. ''Leptochilichthys'' is the only genus in the former family Leptochilichthyidae but is now included within the broader family Alepocephalidae.R. Betancur-Rodriguez, E. Wiley, N. Bailly, A. Acero, M. Miya, G. Lecointre, G. Ortí''Phylogenetic Classification of Bony Fishes – Version 4''(2016) Its name derives from the Greek λεπτός (''leptos'', "small"); χεῖλος (''cheilos'', "lip"); and ἰχθύς (''ichthys'', "fish"). Species The currently recognized species in this genus are: * ''Leptochilichthys agassizii'' (Garman, 1899) (Agassiz' smooth-head) * '' Leptochilichthys microlepis'' ( Machida & Shiogaki, 1988) (smallscale smooth-head) * '' Leptochilichthys pinguis'' ( Vaillant, 1886) (Vaillant's smooth-head) Description Species in genus ''Leptochilichthys'' have toothless maxillae. The maxillae are considered especially long There are teeth on the palate and dentary. Many long gill rakers a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alepocephalus Tenebrosus
''Alepocephalus'' is a genus of slickheads found in all oceans. Species There are currently 20 recognized species in this genus: * '' Alepocephalus agassizii'' Goode & T. H. Bean, 1883 (Agassiz' slickhead) * '' Alepocephalus andersoni'' Fowler, 1934 * '' Alepocephalus antipodianus'' ( Parrott, 1948) (Antipodean slickhead) * '' Alepocephalus asperifrons'' Garman, 1899 * '' Alepocephalus australis'' Barnard, 1923 (Small scaled brown slickhead) * '' Alepocephalus bairdii'' Goode & T. H. Bean, 1879 (Baird's smooth-head) * '' Alepocephalus bicolor'' Alcock, 1891 (Bicolor slickhead) * '' Alepocephalus blanfordii'' Alcock, 1892 * '' Alepocephalus dentifer'' Sazonov & Ivanov, 1979 * '' Alepocephalus fundulus'' Garman, 1899 * '' Alepocephalus longiceps'' Lloyd, 1909 (Longfin slickhead) * '' Alepocephalus longirostris'' Okamura & Kawanishi, 1984 (Longsnout slickhead) * '' Alepocephalus melas'' F. de Buen, 1961 * '' Alepocephalus owstoni'' S. Tanaka (I), 1908 (Owston's slickhe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Wiley & Sons
John Wiley & Sons, Inc., commonly known as Wiley (), is an American multinational publishing company founded in 1807 that focuses on academic publishing and instructional materials. The company produces books, journals, and encyclopedias, in print and electronically, as well as online products and services, training materials, and educational materials for undergraduate, graduate, and continuing education students. History The company was established in 1807 when Charles Wiley opened a print shop in Manhattan. The company was the publisher of 19th century American literary figures like James Fenimore Cooper, Washington Irving, Herman Melville, and Edgar Allan Poe, as well as of legal, religious, and other non-fiction titles. The firm took its current name in 1865. Wiley later shifted its focus to scientific, technical, and engineering subject areas, abandoning its literary interests. Wiley's son John (born in Flatbush, New York, October 4, 1808; died in East Orange, New Je ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
