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Pentanchidae
Pentanchidae is a family of sharks belonging to the order Carcharhiniformes. Genera: * '' Apristurus'' Garman, 1913 * '' Asymbolus'' Whitley, 1939 * '' Cephalurus'' Bigelow & Schroeder, 1941 * '' Galeus'' Rafinesque, 1810 * '' Halaelurus'' Gill, 1862 * ''Holohalaelurus ''Holohalaelurus'' is a genus of catshark in the family Scyliorhinidae, commonly known as Izak catsharks or hallelujah sharks. Member species of this genus are distributed in the western Indian Ocean off the coasts of various Southern African a ...'' Fowler, 1934 * '' Parmaturus'' Garman, 1906 * '' Pentanchus'' Smith & Radcliffe in Smith, 1912 References Carcharhiniformes Shark genera {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apristurus
''Apristurus'' is a genus of catsharks, the family Scyliorhinidae, commonly known as the ghost or demon catsharks. Species The 39 currently recognized species in this genus are: * '' Apristurus albisoma'' Nakaya & Séret, 1999 (white-bodied catshark) * ''Apristurus ampliceps'' Sasahara, Sato & Nakaya, 2008 (roughskin catshark) * '' Apristurus aphyodes'' Nakaya & Stehmann, 1998 (white ghost catshark) * '' Apristurus australis'' Sato Nakaya & Yorozu, 2008 (Pinocchio catshark) * '' Apristurus breviventralis'' Kawauchi, Weigmann & Nakaya, 2014 (shortbelly catshark) * '' Apristurus brunneus'' C. H. Gilbert, 1892 (brown catshark) * ''Apristurus bucephalus'' W. T. White, Last & Pogonoski, 2008 (bighead catshark) * ''Apristurus canutus'' S. Springer & Heemstra, 1979 (hoary catshark) * '' Apristurus exsanguis'' Sato, Nakaya & A. L. Stewart, 1999 (flaccid catshark) * '' Apristurus fedorovi'' Dolganov, 1985 (Fedorov's catshark) * '' Apristurus garricki'' Sato, Stewar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shark
Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the rays. However, the term "shark" has also been used to refer to all extinct members of Chondrichthyes with a shark-like morphology, such as hybodonts and xenacanths. The oldest modern sharks are known from the Early Jurassic. They range in size from the small dwarf lanternshark (''Etmopterus perryi''), a deep sea species that is only in length, to the whale shark (''Rhincodon typus''), the largest fish in the world, which reaches approximately in length. Sharks are found in all seas and are common to depths up to . They generally do not live in freshwater, although there are a few known exceptions, such as the bull shark and the river shark, which can be found in both seawater and fresh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carcharhiniformes
Carcharhiniformes , the ground sharks, are the largest order of sharks, with over 270 species. They include a number of common types, such as catsharks, swellsharks, and the sandbar shark. Members of this order are characterized by the presence of a nictitating membrane over the eye, two dorsal fins, an anal fin, and five gill slits. The families in the order Carcharhiniformes are expected to be revised; recent DNA studies show that some of the conventional groups are not monophyletic. The oldest members of the order appeared during the Middle-Late Jurassic, which have teeth and bodyforms that are morphologically similar to living catsharks. Carchariniformes first underwent major diversification during the Late Cretaceous, initially as small-sized forms, before radiating into medium and large body sizes during the Cenozoic. Families According to FishBase, the nine families of ground sharks are: [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asymbolus
''Asymbolus'' is a genus of catsharks in the family Scyliorhinidae. Species The currently recognized species in this genus are: * '' Asymbolus analis'' ( J. D. Ogilby, 1885) (Australian spotted catshark) * ''Asymbolus funebris'' Compagno, Stevens & Last, 1999 (blotched catshark) * '' Asymbolus galacticus'' Séret & Last, 2008 (starry catshark) * ''Asymbolus occiduus'' Last, M. F. Gomon & Gledhill, 1999 (western spotted catshark) * '' Asymbolus pallidus'' Last, M. F. Gomon & Gledhill, 1999 (pale spotted catshark) * ''Asymbolus parvus'' Compagno, Stevens & Last, 1999 (dwarf catshark) * ''Asymbolus rubiginosus'' Last, M. F. Gomon & Gledhill, 1999 (orange-spotted catshark) * '' Asymbolus submaculatus'' Compagno, Stevens & Last, 1999 (variegated catshark) * ''Asymbolus vincenti The gulf catshark (''Asymbolus vincenti'') is a species of catshark, found only off the shores of southern Australia at depths between . This species can reach a length of fish meas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalurus
The lollipop catshark (''Cephalurus cephalus'') is a little-known species of deep sea catshark, belonging to the family Scyliorhinidae, and the only described member of its genus. A diminutive, bottom-dwelling shark of the outer continental shelf and upper continental slope, this species can be readily identified by its tadpole-like shape with a greatly expanded, rounded head and narrow body. The large head houses expanded gills, which are thought to be an adaptation for hypoxic conditions. This shark preys on crustaceans and fishes. Reproduction is aplacental viviparous, with females retaining egg cases internally two at a time until they hatch. There is no fishery interest in this species. Taxonomy and phylogeny The lollipop catshark was originally described by American ichthyologist Charles Henry Gilbert as ''Catulus cephalus'', in the 1892 14th volume of ''Proceedings of the United States National Museum''. His description was based on a long adult male caught from a dept ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
