|
Wobbegong
Wobbegong is the common name given to the 12 species of carpet sharks in the family Orectolobidae. They are found in shallow temperate and tropical waters of the western Pacific Ocean and eastern Indian Ocean, chiefly around Australia and Indonesia, although one species (the Japanese wobbegong, ''Orectolobus japonicus'') occurs as far north as Japan. The word ''wobbegong'' is believed to come from an Australian Aboriginal language, meaning "shaggy beard", referring to the growths around the mouth of the shark of the western Pacific. Description Wobbegongs are bottom-dwelling sharks, spending much of their time resting on the sea floor. Most species have a maximum length of , but the largest, the spotted wobbegong, ''Orectolobus maculatus'', and banded wobbegong, ''O. halei'', reach about in length. Wobbegongs are well camouflaged with a symmetrical pattern of bold markings which resembles a carpet. Because of this striking pattern, wobbegongs and their close relatives are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spotted Wobbegong
The spotted wobbegong (''Orectolobus maculatus'') is a carpet shark in the family (biology), family Orectolobidae, endemic to Australia. It is a large, robust species, typically reaching in length. Coloured green, yellow, or brown, it has distinctive O-shaped spots throughout its body. It is nocturnal, resting at day and feeding on fish and invertebrates at night. An ovoviviparous species, the spotted wobbegong gives birth in the spring, during which time males can act aggressively towards other males and females. It has been known to bite humans, sometimes unprovoked, which can produce severe wounds. The species is fished commercially in Australia, but it is not severely threatened. It is listed as a least-concern species on the IUCN Red List. Taxonomy The species was described by Pierre Joseph Bonnaterre in 1778. He classified it in the genus ''Squalus'', with the full scientific name of ''Squalus maculatus''. Bonnaterre redescribed the species in 1788 in ''Orectolobus'', i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tasselled Wobbegong
The tasselled wobbegong (''Eucrossorhinus dasypogon'') is a species of carpet shark in the family Orectolobidae and the only extant member of the genus ''Eucrossorhinus''. It inhabits shallow coral reefs off northern Australia, New Guinea, and adjacent islands. Reaching in length, this species has a broad and flattened body and head. Its most distinctive trait is a fringe of branching dermal flaps around its head, which extends onto its chin. The fringe, along with its complex color pattern of small blotches and reticulations, enable it to camouflage itself against the reef environment. During the day, the solitary tasselled wobbegong can generally be found lying inside caves or under ledges with its tail curled. Individual sharks tend to remain within a local area and have favored resting spots. While resting, it opportunistically ambushes nearby fish and invertebrates, and also lures in prey by waving its tail to mimic the appearance of a small fish. At night, it emerges and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sutorectus
The cobbler wobbegong (''Sutorectus tentaculatus'') is a carpet shark in the family Orectolobidae, the only member of the genus ''Sutorectus''. It is found in the subtropical eastern Indian Ocean around Western Australia between latitudes 26° S and 35° S. It is frequently found in rocky and coral reef areas. Cobbler wobbegongs reach a length of . It has unbranched dermal lobes on the head, rows of warty tubercles along the back and black spots on the body and fins. Morphology and ancestral relations Cobbler wobbegongs are a small species of carpet shark (given the name because of the carpet-like patterns on the skin), Orectolobiformes, that are capable of growing to a size of in total length. The size at birth of these sharks is approximately total length, with males maturing at a length of about total. Based upon morphology, ''Sutorectus'' is placed ancestral to '' Eucrossorhinus'', also known as the tasseled wobbegong. ''Sutorectus'' and/or ''Eucrossorhinus'' are cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eucrossorhinus Dasypogon
The tasselled wobbegong (''Eucrossorhinus dasypogon'') is a species of carpet shark in the family Orectolobidae and the only extant member of the genus ''Eucrossorhinus''. It inhabits shallow coral reefs off northern Australia, New Guinea, and adjacent islands. Reaching in length, this species has a broad and flattened body and head. Its most distinctive trait is a fringe of branching dermal flaps around its head, which extends onto its chin. The fringe, along with its complex color pattern of small blotches and reticulations, enable it to camouflage itself against the reef environment. During the day, the solitary tasselled wobbegong can generally be found lying inside caves or under ledges with its tail curled. Individual sharks tend to remain within a local area and have favored resting spots. While resting, it opportunistically ambushes nearby fish and invertebrates, and also lures in prey by waving its tail to mimic the appearance of a small fish. At night, it emerges and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carpet Shark
Carpet sharks are sharks classified in the order (biology), order Orectolobiformes . Sometimes the common name "carpet shark" (given because many species resemble ornately patterned carpets) is used interchangeably with "wobbegong", which is the common name of sharks in the family Orectolobidae. Carpet sharks have five gill slits, two spineless dorsal fins, and a small mouth that does not extend past the eyes. Many species have barbel (anatomy), barbels. Characteristics The carpet sharks are a diverse group of sharks with differing sizes, appearances, diets, and habits. They first appeared in the fossil record in the Early Jurassic; the oldest known orectolobiform genera are ''Folipistrix'' (known from Toarcian to Aalenian of Belgium and Germany), ''Palaeobrachaelurus'' (Aalenian to Barremian) and ''Annea (fish), Annea'' (Toarcian to Bajocian of Europe). All species have two dorsal fins and a relatively short, transverse mouth that does not extend behind the eyes. Besides the nost ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orectolobus
''Orectolobus'' is a genus of carpet sharks in the family Orectolobidae. They are commonly known as wobbegongs, although this name also applies to the other members of the family. They are found in shallow temperate and tropical waters of the western Pacific Ocean and eastern Indian Ocean, chiefly around Australia and Indonesia, although one species (the Japanese wobbegong, ''O. japonicus'') occurs as far north as Japan. They have a mottled or spotted Crypsis, cryptic pattern, and have elongated dermal lobes in the region near the mouth. Most have a maximum length of or less, but two species, ''Orectolobus halei, O. halei'' and ''Orectolobus maculatus, O. maculatus'', reach about (earlier reports of similar-sized ''Orectolobus ornatus, O. ornatus'' is due to confusion with ''O. halei''). These sluggish ambush predators are typically seen resting on the seafloor, and at least some species are nocturnal. While usually harmless to humans, they have been known to bite, but genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orectolobus Leptolineatus Alor
''Orectolobus'' is a genus of carpet sharks in the family Orectolobidae. They are commonly known as wobbegongs, although this name also applies to the other members of the family. They are found in shallow temperate and tropical waters of the western Pacific Ocean and eastern Indian Ocean, chiefly around Australia and Indonesia, although one species (the Japanese wobbegong, ''O. japonicus'') occurs as far north as Japan. They have a mottled or spotted cryptic pattern, and have elongated dermal lobes in the region near the mouth. Most have a maximum length of or less, but two species, '' O. halei'' and '' O. maculatus'', reach about (earlier reports of similar-sized '' O. ornatus'' is due to confusion with ''O. halei''). These sluggish ambush predators are typically seen resting on the seafloor, and at least some species are nocturnal. While usually harmless to humans, they have been known to bite, but generally only if stepped on, approached too closely, or provoked. Spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Banded Wobbegong
The Gulf wobbegong or banded wobbegong (''Orectolobus halei'') is a species of carpet shark in the family Orectolobidae, found in southern Australia between Southport, Queensland and Norwegian Bay, Western Australia.Clark, M. (2006). Wobbegong sharks redescribed.'' Practical Fishkeeping ''Orectolobus halei'' is very similar to the ornate wobbegong, ''O. ornatus'', of which it was treated as a synonym until 2006.Huveneers, C. (2006). ''Redescription of two species of wobbegongs (Chondrichthyes: Orectolobidae) with elevation of Orectolobus halei Whitley 1940 to species level.'' Zootaxa 1284: 29-51. Despite this, genetic evidence suggests that ''O. halei'' is more closely related to the largely sympatric spotted wobbegong, ''O. maculatus'', than either are to the generally more northern ''O. ornatus''.Corrigan, S., C. Huveneers, T. S. Schwartz, R. G. Harcourt, and L. B. Beheregaray (2008). ''Genetic and reproductive evidence for two species of ornate wobbegong shark Orectolobus spp. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Wobbegong
The Japanese wobbegong (''Orectolobus japonicus'') is a carpet shark in the family Orectolobidae of the wobbegong family, found in the tropical western Pacific Ocean from Japan and Korea to Vietnam and the Philippines, between latitudes 43 and 6°N. It reaches a length of 1 m. Japanese wobbegong sharks typically remain motionless during the daytime and are not active hunters. They use camouflage and their electroreceptor pores on their dorsal area to help them sense prey nearby. See also * List of sharks Shark is the naming term of all members of Selachimorpha suborder in the subclass Elasmobranchii, in the class Chondrichthyes. The Elasmobranchii also include rays and skates; the Chondrichthyes also include Chimaeras. The first shark-like chond ... References * * Theiss, S. M., Collin, S. P. & Hart, N. S. Morphology and distribution of the ampullary electroreceptors in wobbegong sharks: implications for feeding behaviour. ''Mar Biol'' 158, 723–735 (2011). {{Ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
