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Hydromys
''Hydromys'' is a genus of semiaquatic rodents in the subfamily Murinae. Three species are endemic to New Guinea and nearby islands. The fourth species, the rakali, is also found on Australia. The most recently discovered member of this genus was described in 2005. List of species Genus ''Hydromys'' - water rats *Rakali, ''Hydromys chrysogaster'' E. Geoffroy, 1804 * Western water rat, ''Hydromys hussoni'' Musser and Piik, 1982 *New Britain water rat, ''Hydromys neobritannicus'' Tate and Archbold, 1935 * Ziegler's water rat, ''Hydromys ziegleri'' Helgen, 2005 Note: '' Hydromys habbema'' Tate and Archbold, 1941 and '' Hydromys shawmayeri'' (Hinton, 1943) are placed within ''Baiyankamys '' Baiyankamys'' is a genus of amphibious murid rodents. It was originally described, along with the species '' Baiyankamys shawmayeri'' by Hinton in 1943 after he found the remains of a single individual in south east of the Bismarck Mountain ...'' after Helgen, 2005. References * * * Ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rakali
The rakali (''Hydromys chrysogaster)'', also known as the rabe or water-rat, is an Australian native rodent first described in 1804. Adoption of the Aboriginal name Rakali is intended to foster a positive public attitude by Environment Australia. One of four described species in the genus '' Hydromys'', it is the only one with a range extending beyond Papua New Guinea and Indonesian West Papua. Having adapted to and colonised a unique niche of a semiaquatic and nocturnal lifestyle, this species lives in burrows on the banks of rivers, lakes and estuaries and feeds on aquatic insects, fish, crustaceans, mussels, snails, frogs, birds' eggs and water birds. Rakali have a body in length, weigh , and have a thick tail measuring around . Females are generally smaller than males but tail lengths are normally the same. They have partially webbed hind legs, waterproof fur, a flattened head, a long blunt nose, many whiskers and small ears and eyes. The body is streamlined with a skul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydromys
''Hydromys'' is a genus of semiaquatic rodents in the subfamily Murinae. Three species are endemic to New Guinea and nearby islands. The fourth species, the rakali, is also found on Australia. The most recently discovered member of this genus was described in 2005. List of species Genus ''Hydromys'' - water rats *Rakali, ''Hydromys chrysogaster'' E. Geoffroy, 1804 * Western water rat, ''Hydromys hussoni'' Musser and Piik, 1982 *New Britain water rat, ''Hydromys neobritannicus'' Tate and Archbold, 1935 * Ziegler's water rat, ''Hydromys ziegleri'' Helgen, 2005 Note: '' Hydromys habbema'' Tate and Archbold, 1941 and '' Hydromys shawmayeri'' (Hinton, 1943) are placed within ''Baiyankamys '' Baiyankamys'' is a genus of amphibious murid rodents. It was originally described, along with the species '' Baiyankamys shawmayeri'' by Hinton in 1943 after he found the remains of a single individual in south east of the Bismarck Mountain ...'' after Helgen, 2005. References * * * Ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baiyankamys
'' Baiyankamys'' is a genus of amphibious murid rodents. It was originally described, along with the species '' Baiyankamys shawmayeri'' by Hinton in 1943 after he found the remains of a single individual in south east of the Bismarck Mountain Range, north east New Guinea. Tate, in 1951 and, Laurie and Hill in 1954, confirmed the existence of both the species and genus. Classification Hinton described '' Baiyankamys'' as similar in appearance to the species '' Hydromys habbema'' but differed due to its unreduced pinnae and its lower teeth. It was described as having three lower molars on both sides of the lower jaw, whereas other genera of amphibious murines in New Guinea have only two. In 1968 Mahoney discovered that the specimen of ''B. shawmayeri'' was a composite resulting from an incorrectly associated mandible of the species ''Rattus niobe'' and the skull of a small water rat. When the correct mandible was found in the BMNH collections Mahoney proposed that, based o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Murinae
The Old World rats and mice, part of the subfamily Murinae in the family Muridae, comprise at least 519 species. Members of this subfamily are called murines. In terms of species richness, this subfamily is larger than all mammal families except the Cricetidae and Muridae, and is larger than all mammal orders except the bats and the remainder of the rodents. Description The Murinae are native to Africa, Europe, Asia, and Australia. They are terrestrial placental mammals. They have also been introduced to all continents except Antarctica, and are serious pest animals. This is particularly true in island communities where they have contributed to the endangerment and extinction of many native animals. Two prominent murine species have become vital laboratory animals: the brown rat and house mouse are both used as medical subjects. The murines have a distinctive molar pattern that involves three rows of cusps instead of two, the primitive pattern seen most fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Water Rat
The western water rat (''Hydromys hussoni'') is a semiaquatic species of rodent in the family Muridae. It is found in West Papua, Indonesia and Papua New Guinea. 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 .... References * Hydromys Rodents of Papua New Guinea Mammals of Western New Guinea Mammals described in 1982 Taxonomy articles created by Polbot Endemic fauna of New Guinea Taxa named by Guy Musser Rodents of New Guinea {{Murinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydromys Neobritannicus
The New Britain water rat (''Hydromys neobritannicus'') is a species of semiaquatic rodent in the family Muridae. It is found only on the island of New Britain in Papua New Guinea. 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 .... References * Rats of Asia Rodents of Papua New Guinea Mammals described in 1935 Taxonomy articles created by Polbot Hydromys Taxa named by George Henry Hamilton Tate Taxa named by Richard Archbold {{Murinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydromys Ziegleri
Ziegler's water rat (''Hydromys ziegleri''), discovered in the mid-2000s, is a semiaquatic species of rodent native to the mountains Papua New Guinea of which little is known. Research and history It was discovered in 2005 by K. Helgen,Dictionary of Australian and New Guinean mammals Ronald Strahan, Pamela Conder, 2007, access date 06-11-2011. and later was assessed by Helgen, and A. Allison in 2008. The water rat was named in honor of the deceased Dr. Alan C. Ziegler from the . It has been rated as data deficient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Britain Water Rat
The New Britain water rat (''Hydromys neobritannicus'') is a species of semiaquatic rodent in the family Muridae. It is found only on the island of New Britain in Papua New Guinea. 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 .... References * Rats of Asia Rodents of Papua New Guinea Mammals described in 1935 Taxonomy articles created by Polbot Hydromys Taxa named by George Henry Hamilton Tate Taxa named by Richard Archbold {{Murinae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent Genera
Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are native to all major land masses except for New Zealand, Antarctica, and several oceanic islands, though they have subsequently been introduced to most of these land masses by human activity. Rodents are extremely diverse in their ecology and lifestyles and can be found in almost every terrestrial habitat, including human-made environments. Species can be arboreal, fossorial (burrowing), saltatorial/richochetal (leaping on their hind legs), or semiaquatic. However, all rodents share several morphological features, including having only a single upper and lower pair of ever-growing incisors. Well-known rodents include mice, rats, squirrels, prairie dogs, porcupines, beavers, guinea pigs, and hamsters. Rabbits, hares, and pikas, whose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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