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Beardfish
The beardfishes consist of a single extant genus, '' Polymixia'', of deep-sea marine ray-finned fish named for their pair of long hyoid barbels. They are classified in their own order Polymixiiformes . But as Nelson says, "few groups have been shifted back and forth as frequently as this one, and they were recently added to Paracanthoptergii". For instance, they have previously been classified as belonging to the Beryciformes. They are of little economic importance. They are found in tropical and subtropical waters of the Atlantic, Indian and western Pacific Ocean. They are bottom-dwelling fish, found down to about depth. Most are relatively small fish, although one species, '' Polymixia berndti'', is over in length. Classification * Order Polymixiiformes Rosen & Patterson, 1969 ** Genus †'' Cumbaaichthys'' Murray 2016 *** †'' Cumbaaichthys oxyrhynchus'' Murray 2016 ** Family † Boreiohydriidae Murray & Cumbaa 2013 *** Genus †'' Boreiohydrias'' Murray & Cumbaa 2013 *** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymixia
''Polymixia'' is the only extant taxon, extant genus of the Order (biology), order Polymixiiformes and the only genus in Polymixiidae. It contains 10 species, all of which live in deepwater marine environments. They are found in tropical and subtropical waters of the Atlantic, Indian Ocean, Indian and western Pacific Ocean, Pacific Oceans. They are bottom-dwelling fish, found down to about . Most are relatively small fish, although one species is over in length. Classification There are currently 10 recognized species in this genus: * ''Polymixia berndti'' Charles Henry Gilbert, C. H. Gilbert, 1905 (Pacific beardfish) * ''Polymixia busakhini'' Aleksandr Nicholaevich Kotlyar, Kotlyar, 1993 (Busakhin's beardfish) * ''Polymixia fusca'' Adolf Kotthaus, Kotthaus, 1970 * ''Polymixia japonica'' Albert Günther, Günther, 1877 (Silver eye) * ''Polymixia longispina'' Deng Si-Ming, S. M. Deng, Xiong Guo-Qiang, G. Q. Xiong & Zhan Hong-Xi, H. X. Zhan, 1983 * ''Polymixia lowei'' Albert Günt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymixia Berndti
''Polymixia berndti'' is a species of beardfish found in the Indian and Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...s. This species grows to a length of SL. Appearance and anatomy The species'' ''has 4-5 dorsal spines and 28-31 dorsal soft rays. It is usually dusky-greenish or silver. Environment and climate ''Polymixia berndti'' is found in reef-associated deep water locations in the Indo-Pacific Ocean. The species is also distributed below Australia, north of Japan, and in the aquatic region from East Africa to the Hawaiian Islands."Pacific beardfish"Fishbase.org/ref> ''Polymixia berndti ''has a depth range of 18 – 585 m. References External links * Polymixiiformes {{polymixiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymixia Nobilis
''Polymixia nobilis'', the stout beardfish, is a species of beardfish. This species can grow over TL. ''P. nobilis'' lives on both sides of the Atlantic Ocean on gravel and sandy bottoms. Scientists do not know how they behave or reproduce. The species's dorsal fin has five spines and 34-27 soft rays. The habitat of the fish is in the benthic zone The benthic zone is the ecological region at the lowest level of a body of water such as an ocean, lake, or stream, including the sediment surface and some sub-surface layers. The name comes from ancient Greek, βένθος (bénthos), meaning " .... References Polymixiiformes Fish described in 1838 Taxa named by Richard Thomas Lowe {{polymixiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beryciformes
The Beryciformes are a poorly-understood order of carnivorous ray-finned fishes consisting of 7 families, 30 genera, and 161 species. They feed on small fish and invertebrates. Beyond this, little is known about the biology of most member species because of their nocturnal habits and deepwater habitats. All beryciform species are marine and most live in tropical to temperate, deepwater environments. Most live on the continental shelf and continental slope, with some species being found as deep as . Some species move closer to the surface at night, while others live entirely in shallow water and are nocturnal, hiding in rock crevices and caves during the day. Several species are mesopelagic and bathypelagic. Beryciformes' bodies are deep and mildly compressed, typically with large eyes that help them see in darker waters. Colors range from red to yellow and brown to black, and sizes range from . Member genera include the alfonsinos, squirrelfishes, flashlight fishes, fangtooth fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berycopsis Pulcher
''Berycopsis'' is an extinct genus of beardfish from the Cretaceous period. Fossils are known from England. It was about long and one of the first members of the Acanthopterygii, the group that includes the present day barracuda, swordfish, seahorses, and flatfish. Like its modern relatives, the first fin rays in the dorsal and anal fins were modified into defensive spines, and the pelvic fins were located close to the 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 ...s. ''Berycopsis'' was one of the earliest fish known to have these features, which are widespread today. References Cretaceous bony fish Polymixiiformes Prehistoric ray-finned fish genera Cretaceous fish of Europe {{Polymixiiformes-stub ... [...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] |
Berycopsis Germana
''Berycopsis'' is an extinct genus of beardfish from the Cretaceous period. Fossils are known from England. It was about long and one of the first members of the Acanthopterygii, the group that includes the present day barracuda, swordfish, seahorses, and flatfish. Like its modern relatives, the first fin rays in the dorsal and anal fins were modified into defensive spines, and the pelvic fins were located close to the 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 ...s. ''Berycopsis'' was one of the earliest fish known to have these features, which are widespread today. References Cretaceous bony fish Polymixiiformes Prehistoric ray-finned fish genera Cretaceous fish of Europe {{Polymixiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berycopsis Elegans
''Berycopsis'' is an extinct genus of beardfish from the Cretaceous period. Fossils are known from England. It was about long and one of the first members of the Acanthopterygii, the group that includes the present day barracuda, swordfish, seahorses, and flatfish. Like its modern relatives, the first fin rays in the dorsal and anal fins were modified into defensive spines, and the pelvic fins were located close to the 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 ...s. ''Berycopsis'' was one of the earliest fish known to have these features, which are widespread today. References Cretaceous bony fish Polymixiiformes Prehistoric ray-finned fish genera Cretaceous fish of Europe {{Polymixiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Berycopsis
''Berycopsis'' is an extinct genus of beardfish from the Cretaceous period. Fossils are known from England. It was about long and one of the first members of the Acanthopterygii, the group that includes the present day barracuda, swordfish, seahorses, and flatfish. Like its modern relatives, the first fin rays in the dorsal and anal fins were modified into defensive spines, and the pelvic fins were located close to the 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 ...s. ''Berycopsis'' was one of the earliest fish known to have these features, which are widespread today. References Cretaceous bony fish Polymixiiformes Prehistoric ray-finned fish genera Cretaceous fish of Europe {{Polymixiiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
