|
Rhinidae
Wedgefishes are rays of the family Rhinidae, comprising eleven species in three genera. Classified in the order Rhinopristiformes along with guitarfishes and sawfishes, they have also been known as giant guitarfishes or sharkfin guitarfishes. Taxonomy * ''Rhina'' Bloch & Schneider, 1801 ** '' Rhina ancylostoma'' Bloch & Schneider, 1801 (Shark ray) * '' Rhynchobatus'' J. P. Müller & Henle, 1837 ** ''Rhynchobatus australiae'' Whitley, 1939 (Bottlenose wedgefish) ** ''Rhynchobatus cooki'' Last, Kyne & Compagno, 2016 (Roughnose wedgefish) ** ''Rhynchobatus djiddensis'' (Forsskål, 1775) (Whitespotted wedgefish) ** ''Rhynchobatus immaculatus'' Last, Ho & Chen, 2013 (Taiwanese wedgefish) ** ''Rhynchobatus laevis'' (Bloch & Schneider, 1801) (Smoothnose wedgefish) ** '' Rhynchobatus luebberti'' Ehrenbaum, 1915 (African wedgefish) ** '' Rhynchobatus mononoke'' Koeda, Itou, Yamada & Motomura, 2020 (Japanese wedgefish) ** '' Rhynchobatus palpebratus'' Compagno & Last, 2008 (Eyebrow wedgefi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowmouth Guitarfish
''Rhina ancylostoma'', the bowmouth guitarfish, shark ray or mud skate, is a species of ray and a member of the family Rhinidae. Its evolutionary affinities are not fully resolved, though it may be related to true guitarfishes and skates. This rare species occurs widely in the tropical coastal waters of the western Indo-Pacific, at depths of up to . Highly distinctive in appearance, ''Rhina ancylostoma'' has a wide and thick body with a rounded snout and large shark-like dorsal and tail fins. Its mouth forms a W-shaped undulating line, and there are multiple thorny ridges over its head and back. It has a dorsal color pattern of many white spots over a bluish gray to brown background, with a pair of prominent black markings over the pectoral fins. This large species can reach a length of and weight of . Usually found near the sea floor, ''Rhina ancylostoma'' prefers sandy or muddy areas near underwater structures. It is a strong-swimming predator of bony fishes, crustacea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhina Ancylostoma
''Rhina ancylostoma'', the bowmouth guitarfish, shark ray or mud skate, is a species of ray and a member of the family Rhinidae. Its evolutionary affinities are not fully resolved, though it may be related to true guitarfishes and skates. This rare species occurs widely in the tropical coastal waters of the western Indo-Pacific, at depths of up to . Highly distinctive in appearance, ''Rhina ancylostoma'' has a wide and thick body with a rounded snout and large shark-like dorsal and tail fins. Its mouth forms a W-shaped undulating line, and there are multiple thorny ridges over its head and back. It has a dorsal color pattern of many white spots over a bluish gray to brown background, with a pair of prominent black markings over the pectoral fins. This large species can reach a length of and weight of . Usually found near the sea floor, ''Rhina ancylostoma'' prefers sandy or muddy areas near underwater structures. It is a strong-swimming predator of bony fishes, crustaceans, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus
''Rhynchobatus'' is a group of rays commonly known as wedgefishes in the family Rhinidae. They are found in the tropical and subtropical Indo-Pacific with a single species (''R. luebberti'') in the eastern Atlantic. All species in this genus are assessed as Vulnerable or Endangered by IUCN. The species are superficially similar and have often been confused. The various species can generally be separated by a combination of snout shape, vertebral count and exact colour (distribution of white spots, and presence/absence of a black spot at the base of the pectoral fin). The largest species can reach about and are among the largest species of rajiforms, but the smallest reach less than one-third of that size.Last, Kyne & Compagno (2016). A new species of wedgefish Rhynchobatus cooki (Rhinopristiformes, Rhinidae) from the Indo-West Pacific. Zootaxa 4139(2): 233-247. Species There are currently seven recognized species in this genus: In the past all the Indo-Pacific species have be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchorhina Mauritaniensis
The false shark ray (''Rhynchorhina mauritaniensis'') is a species of fish in the Rhinidae family and the only species in the genus ''Rhynchorhina''. This rare ray is only known from shallow coastal Atlantic waters in Banc d’Arguin, Mauritania. The upperparts of the false shark ray are greyish or greenish-brown and densely covered in white spots. The largest known reliably measured specimen was long, but individuals about have been seen. Overall it resembles the African wedgefish (''Rhynchobatus luebberti'') found in the same region, but it has a blunt rounded snout somewhat like the shark ray or bowmouth guitarfish (''Rhina ancylostoma'') of the Indo-Pacific. The genus name ''Rhynchorhina'' (Rhyncho+rhina) is a reference to this "mix" of features. Although long known by the local Imraguen people, the first record confirmed by scientists was in 1998 and it only received its species description in 2016. Very little is known about the behavior of the false shark ray, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus Cooki
The roughnose wedgefish (''Rhynchobatus cooki'') is a species of fish in the Rhinidae family. It is found in Indonesia (off Java) and Singapore. Its natural habitats are open seas, shallow seas, coral reefs, estuarine waters, and coastal saline lagoons. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... Despite having been known for more than a decade, it remained undescribed until 2016.Last, P.R., Ho, H.-C. & Chen, R.-R. (2013). ''A new species of wedgefish, Rhynchobatus immaculatus (Chondrichthyes, Rhynchobatidae), from Taiwan.'' Pp. 185-198 in: de Carvalho, M.R., Ebert, D.A., Ho, H.-C. & White, W.T., eds. Systematics and biodiversity of sharks, rays, and chimaeras (Chondrichthyes) of Taiwan. Zootaxa, 3752 (1): 1–386.Last, Kyne & Compagno (201 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus Springeri
The broadnose wedgefish (''Rhynchobatus springeri'') is a species of fish in the Rhinidae family. It is found in coastal and estuarine habitats in southeast Asia, where documented from Java, Borneo, Singapore, the Philippines and Thailand.Compagno, L.J.V. and P.R. Last (2010). ''A new species of wedgefish, Rhynchobatus springeri (Rhynchobatoidei, Rhynchobatidae), from the Western Pacific.'' 77-88 pp. in: Last, P.R., White, W.T. & Pogonoski, J.J., eds.: Descriptions of new sharks and rays from Borneo. CSIRO Marine and Atmospheric Research Paper no. 32. It is threatened by habitat loss and overfishing. This is a medium-sized species of ''Rhynchobatus'', which reaches a maximum length of about . Etymology The ray is named in honor of Stewart Springer (5 June 1906 – 23 August 1991), because of his contributions to the systematics of ''Rhynchobatus''. References Rhynchobatus, broadnose wedgefish Marine fauna of Southeast Asia Taxa named by Leonard Compagno Taxa named by Pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus Palpebratus
''Rhynchobatus palpebratus'', the eyebrow wedgefish, is a species of fish in the Rhinidae family.Compagno, L.J.V. & Last, P.R. (2008). ''A new species of wedgefish, Rhynchobatus palpebratus sp. nov. (Rhynchobatoidei: Rhynchobatidae), from the Indo–West Pacific.'' In: Last, P.R., White, W.T. & Pogonoski, J.J., eds: Descriptions of new Australian chondrichthyans. CSIRO Marine and Atmospheric Research Paper 022, pp. 227–240. It is found in coastal waters off northern Australia. It reaches up to in length and closely resemble the smoothnose wedgefish (''R. laevis''), which has denser white spotting, and also differ in distribution and genetics Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinian friar wor .... References External links Fishes of Australia : ''Rhynchobatus palpebratus'' eyebr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus Mononoke
''Rhynchobatus mononoke'', the Japanese wedgefish, is a species of fish in the family Rhinidae. It is found in southern Japan. This species reaches a length of . References mononoke ''Mononoke'' (物の怪) are vengeful spirits (onryō), dead spirits (shiryō), live spirits (ikiryō), or spirits in Japanese classical literature and folk religion that were said to do things like possess individuals and make them suffer, cause ... Fish of Japan Taxa named by Keita Koeda Taxa named by Masahide Itou Taxa named by Morihiko Yamada Taxa named by Hiroyuki Motomura Fish described in 2020 Taxonomy articles created by Polbot {{Chondrichthyes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus Luebberti
The African wedgefish, guitarra, Lubbert's guitarfish, or spikenose wedgefish (''Rhynchobatus luebberti'') is a species of fish in the Rhinidae family. It is the only species in its genus to occur in the East Atlantic. Etymology The fish is named in honor of Hans Julius Lübbert (1870-1951), a German fisheries inspector. Taxonomy Description African wedgefish have a pale olive-brown or olive-grey color with white spots spread across their back. The edges of their fins are sometimes paler in color. They have a cluster of three black marks on each side of a ridge that runs along their back. Another dark mark can be found each one of these marks. The area around each fish's eye is lighter, reminiscent of a mask. The fish have ridges near their front that possess a row of thorns. The African wedgefish has a maximum total length of about 3 m (9.8 ft), but are usually 1.5 m (4.9 ft) long. They have 172-176 free vertebral centra. Distribution and habitat T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus Laevis
The smoothnose wedgefish (''Rhynchobatus laevis'') is a species of fish in the Rhinidae family. It is found in northern Indian Ocean and northwestern Pacific Ocean, ranging from the Arabian Sea and Persian Gulf east to Bangladesh, and South China Sea to southern Japan. Populations elsewhere are now recognized as separate species.Last, P.R., Ho, H.-C. & Chen, R.-R. (2013): A new species of wedgefish, Rhynchobatus immaculatus (Chondrichthyes, Rhynchobatidae), from Taiwan. Pp. 185-198 in: de Carvalho, M.R., Ebert, D.A., Ho, H.-C. & White, W.T. (eds.) : Systematics and biodiversity of sharks, rays, and chimaeras (Chondrichthyes) of Taiwan. Zootaxa, 3752 (1): 1–386. Its natural habitat is shallow coastal seas and off the mouths of rivers. It is threatened by habitat loss and overfishing. Due to confusion with relatives it is poorly known, but it likely reaches at least in length. Its upperparts are greyish or brownish with 4–5 rows of white spots along each side; above each pecto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhynchobatus Australiae
''Rhynchobatus australiae'', also called the white-spotted guitarfish, white-spotted wedgefish or bottlenose wedgefish, is a species of fish in the Rhinidae family. It is found from shallow waters to a depth of at least in the Indo-Pacific, ranging from the East African coast and the Red Sea, to Taiwan, the Philippines and Australia. It is part of a species complex that also includes the giant guitarfish, the broadnose wedgefish and possibly the smoothnose wedgefish. ''R. australiae'' reaches about in length. Juveniles and young adults are greyish or brownish above with a sparse covering of white spots and a black spot above each 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 .... There are three white spots above each black spot. Large adults are considerably d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guitarfish
The guitarfish, also referred to as shovelnose rays, are a family, Rhinobatidae, of rays. The guitarfish are known for an elongated body with a flattened head and trunk and small, ray-like wings. The combined range of the various species is tropical, subtropical, and warm temperate waters worldwide. Names In Australia and New Zealand, guitarfish are commonly referred to as shovelnose rays or shovelnose sharks. Description Guitarfish have a body from intermediate between those of sharks and rays. The tail has a typical shark-like form, but in many species, the head has a triangular, or guitar-like shape, rather than the disc-shape formed by fusion with the pectoral fins found in other rays. Reproduction Guitarfish are ovoviviparous; the embryo matures inside an egg within the mother until it is ready to hatch. This is typical of rays. Habitat Guitarfish are bottom feeders that bury themselves in mud or sand and eat worms, crabs, and clams. Some can tolerate salt, fresh, and bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
