|
List Of Fishes Of Great Britain
This is a list of fish found in and around Great Britain, in both fresh water (lakes, rivers, streams and man-made pools) and salt water. This list includes species that are native to Great Britain, as well as those which have been introduced from other countries. Agnatha - jawless fish Myxini - hagfish Myxinidae - hagfish * Atlantic hagfish, ''Myxine glutinosa'' * White-headed hagfish, ''Myxine ios'' Petromyzontiformes - lampreys Petromyzontidae - northern lampreys * River lamprey, ''Lampetra fluviatilis'' *Brook lamprey, ''Lampetra planeri'' *Sea lamprey, ''Petromyzon marinus'' Chondrichthyes - cartilaginous fish Chimaeriformes - ratfish Chimaeridae - short-nosed chimaeras *Ratfish, ''Chimaera monstrosa'' * Opal chimaera, ''Chimaera opalescens'' * Smalleyed rabbitfish, ''Hydrolagus affinis'' * Large-eyed rabbitfish, ''Hydrolagus mirabilis'' Rhinochimaeridae - long-nosed chimaeras * Narrownose chimaera, ''Harriotta raleighana'' * Broadnose chimaera, ''Rhinoch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of living fish species are ray-finned fish, belonging to the class Actinopterygii, with around 99% of those being teleosts. The earliest organisms that can be classified as fish were soft-bodied chordates that first appeared during the Cambrian period. Although they lacked a true spine, they possessed notochords which allowed them to be more agile than their invertebrate counterparts. Fish would continue to evolve through the Paleozoic era, diversifying into a wide variety of forms. Many fish of the Paleozoic developed external armor that protected them from predators. The first fish with jaws appeared in the Silurian period, after which many (such as sharks) became formidable marine predators rather than just the prey of arthropods. Mos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rabbit Fish
''Chimaera monstrosa'', also known as the rabbit fish or rat fish, is a northeast Atlantic Ocean, Atlantic and Mediterranean Sea, Mediterranean species of cartilaginous fish in the family Chimaeridae. The rabbit fish is known for its characteristically large head and small, tapering body. With large eyes, nostrils, and tooth plates, the head gives them a rabbit-like appearance, hence the nickname “Rabbit fish”. They can grow to and live for up to 30 years. Description The appearance of ''C. monstrosa'' shares characteristics of its distant relatives, sharks. It characteristically has a large head and a tapering body that ends in its whip-like tail, and has a short snout with an overhanging mouth. The top dorsal fin is positioned high on the spine of the fish, and is triangular and tall in height. Positioned in the mid-section of the fish, the spine runs throughout the length of the fish and continuously joins with the upper part of the caudal fin; this dorsal spine is als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squaliformes
The Squaliformes are an order (biology), order of sharks that includes about 126 species in seven families. Members of the order have two dorsal fins, which usually possess spines, they usually have a sharp head, no anal fin or nictitating membrane, and five to seven gill slits. In most other respects, however, they are quite variable in form and size. Most species of the squaliform order live in saltwater or brackish water. They are found worldwide, from northern to tropical waters, and from shallow coastal seas to the open ocean. All members of the family Eptomeridae and Dalatiidae and ''Zameus squamulosus'' possess photophores, luminous organs, and exhibit intrinsic bioluminescence. Bioluminescence evolved once in Squaliformes, approximately 111–153 million years ago, and helped the Squaliformes radiate and adapt to the deep sea. The common ancestor of Dalatiidae, Etmopteridae, Somniosidae, and Oxynotidae possessed a luminous organ and used bioluminescence for camouf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bluntnose Sixgill Shark
The bluntnose sixgill shark (''Hexanchus griseus''), often simply called the cow shark, is the largest hexanchoid shark, growing to in length. It is found in tropical and temperate waters worldwide and its diet is widely varied by region. The bluntnose sixgill is a species of sixgill sharks, of genus ''Hexanchus'', a genus that also consists of two other species: the bigeye sixgill shark ( ''Hexanchus nakamurai'') and the Atlantic sixgill shark ( ''Hexanchus vitulus''). Through their base pairs of mitochondrial genes COI and ND2, these three species of sixgills widely differ from one another. Taxonomy The first scientific description of the bluntnose sixgill shark was authored in 1788 by Pierre Joseph Bonnaterre. As a member of the family Hexanchidae, it has more close relatives in the fossil record than living relatives. The related living species include the dogfish, the Greenland shark, and other six- and seven-gilled sharks. Some of the shark's relatives date back 200 m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sharpnose Sevengill Shark
The sharpnose sevengill shark (''Heptranchias perlo''), also known as one-finned shark, perlon shark, sevengill cow shark, sharpsnouted sevengill or slender sevengill, is a species of shark in the family Hexanchidae, and the only living species in the genus ''Heptranchias''. Found almost circumglobally in deep water, it is one of the few species of sharks with seven pairs of gill slits as opposed to the usual five. The other shark species with seven gill slits is the broadnose sevengill shark. Though small, this shark is an active, voracious predator of invertebrates and fish. When caught, this species is notably defensive and will attempt to bite. It is of minor commercial importance. Taxonomy The genus name ''Heptranchias'' is from the Greek ''heptra'' meaning "seven arms", and ''agchein'' meaning "throttle", referring to this shark's seven pairs of gill slits. Other common names for this species include one-finned shark, perlon shark, sevengill cow shark, sevengilled Mediterr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frilled Shark
The frilled shark (''Chlamydoselachus anguineus'') and the southern African frilled shark (''Chlamydoselachus africana'') are the two extant species of shark in the family '' Chlamydoselachidae''. The frilled shark is considered a living fossil, because of its primitive, anguilliform (eel-like) physical traits, such as a dark-brown color, amphistyly (the articulation of the jaws to the cranium), and a –long body, which has dorsal, pelvic, and anal fins located towards the tail. The common name, ''frilled shark'', derives from the fringed appearance of the six pairs of gill slits at the shark's throat. The two species of frilled shark are distributed throughout regions of the Atlantic and the Pacific oceans, usually in the waters of the outer continental shelf and of the upper continental slope, where the sharks usually live near the ocean floor, near biologically productive areas of the ecosystem. To live on a diet of cephalopods, smaller sharks, and bony fish, the frilled s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlamydoselachidae
''Chlamydoselachus'' is a genus of sharks and the sole extant member of the family Chlamydoselachidae, in the order Hexanchiformes. It contains two extant and several extinct species. The most widely known species still surviving is the frilled shark (''Chlamydoselachus anguineus''). It is known as a living fossil, along with ''Chlamydoselachus africana'', also known as the southern African frilled shark, which is only found along coastal areas of South Africa. The only two extant species of this genus are deep-sea creatures which are typically weakened in areas closer to the surface. Species * '' Chlamydoselachus africana'' Ebert & Compagno, 2009 (southern African frilled shark) * '' Chlamydoselachus anguineus'' Garman, 1884 (frilled shark) * †'' Chlamydoselachus bracheri'' Pfeil, 1983 * †'' Chlamydoselachus fiedleri'' Pfeil, 1983 * †'' Chlamydoselachus garmani'' Welton, 1983 * †''Chlamydoselachus goliath ''Rolfodon goliath'' is an extinct species of large frilled ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hexanchiformes
The Hexanchiformes are the order consisting of the most primitive types of sharks, and numbering just seven extant species. Fossil sharks that were apparently very similar to modern sevengill species are known from Jurassic specimens. Hexanchiform sharks have only one dorsal fin, either six or seven gill slits, and no nictitating membrane in the eyes. Shark teeth similar to those modern hexanchids are known from Devonian deposits in Antarctica and Australia, as well as Permian deposits in Japan. If these are in fact hexanchids, this may be the only extant order of elasmobranchs to have survived after the Permian extinction (and by extension, the oldest extant order of elasmobranchs). The frilled sharks of the genus ''Chlamydoselachus'' are very different from the cow sharks, and have been proposed to be moved to a distinct order, Chlamydoselachiformes. Classification Living species *Family Chlamydoselachidae Garman 1884 (frilled sharks) **''Chlamydoselachus'' Garman, 1884 ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broadnose Chimaera
The broadnose chimaera, knifenose chimaera, spearnose chimaera, or straightnose rabbitfish (''Rhinochimaera atlantica'') is a species of fish in the family Rhinochimaeridae found near Canada, Colombia, France, Gambia, Iceland, Mauritania, Mexico, Namibia, Senegal, South Africa, Suriname, and the United States. Its natural habitat is open sea The sea, connected as the world ocean or simply the ocean, is the body of salty water that covers approximately 71% of the Earth's surface. The word sea is also used to denote second-order sections of the sea, such as the Mediterranean Sea, ...s. References Rhinochimaera Taxonomy articles created by Polbot Fish described in 1909 {{Chondrichthyes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narrownose Chimaera
The narrownose chimaera (''Harriotta raleighana'') is a longnose chimaera of the family Rhinochimaeridae, the longnose chimaeras, consisting of eight species belonging three genera. This species is found in temperate seas worldwide, at depths between 200 and 2,600 m. Its length is between 1.0 and 1.5 m, including a long, tapering snout and a long, filamentous tail. Taxonomy This species was first described by George Brown Goode and Tarleton Hoffman Bean in 1895. The genus ''Harriotta'' refers to Thomas Harriot and the species name references Sir Walter Raleigh. Description Narrownose chimaeras have elongate rostra, slender tails, large pectoral and pelvic fins, large eyes, and two dorsal fins, the first being preceded by a spine. They possess two pairs of non-replaceable tooth plates in the upper jaw and a one pair in the lower jaw.Didier, Dominique A. "Phylogeny and classification of extant Holocephali." ''Biology of sharks and their relatives'' 4 (2004): 115-138. Male ''H. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinochimaeridae
The Rhinochimaeridae, commonly known as long-nosed chimaeras, are a family (biology), family of cartilaginous fish. They are similar in form and habits to other chimaeras, but have an exceptionally long conical or paddle-shaped snout. The snout has numerous sensory nerve endings, and is used to find food such as small fish. The first dorsal fin includes a mildly venomous spine, used in defense. Long-nosed chimaeras are found in temperate and tropical seas worldwide, from in depth. In August 2020, a long-nosed chimaera was brought up from off the Grand Banks of Newfoundland. They range from in maximum total length, depending on species. Species The eight known species are in three genera: Family Rhinochimaeridae * Genus ''Harriotta'' George Brown Goode, Goode & Tarleton Hoffman Bean, Bean, 1895 ** ''Harriotta haeckeli'' Karrer, 1972 (smallspine spookfish) ** ''Harriotta raleighana'' Goode & Bean, 1895 (narrownose chimaera) * Genus ''Neoharriotta'' Henry Bryant Bigelow, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
