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Nephelomys Devius
''Nephelomys devius'', also known as the Talamancan oryzomys,Musser and Carleton, 2005 Boquete rice rat, Chiriqui rice rat,Goldman, 1918, p. 80 or montane rice rat, is a species of rodent in the genus ''Nephelomys'' of family Cricetidae.Weksler et al., 2006, p. 18 It is found in cloud forest in the highlands of Costa Rica and western Panama. The upperparts are light brown and become lighter towards the sides. The underparts are buffy or dull white, with a whitish area at the throat. The ears are blackish, as is the nose, and the feet are yellow to brown. The tail is dark brown above and somewhat lighter below. In juveniles, the fur of the upperparts is darker. In three specimens, the total length ranges from , the combined length of the tail vertebrae from , the hindfoot length from , and the skull length from . ''N. devius'' is the westernmost representative of its genus, with a related species, '' N. pirrensis'', known from eastern Panama. In contrast to that species, the ches ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holotype
A holotype is a single physical example (or illustration) of an organism, known to have been used when the species (or lower-ranked taxon) was formally described. It is either the single such physical example (or illustration) or one of several examples, but explicitly designated as the holotype. Under the International Code of Zoological Nomenclature (ICZN), a holotype is one of several kinds of name-bearing types. In the International Code of Nomenclature for algae, fungi, and plants (ICN) and ICZN, the definitions of types are similar in intent but not identical in terminology or underlying concept. For example, the holotype for the butterfly '' Plebejus idas longinus'' is a preserved specimen of that subspecies, held by the Museum of Comparative Zoology at Harvard University. In botany, an isotype is a duplicate of the holotype, where holotype and isotypes are often pieces from the same individual plant or samples from the same gathering. A holotype is not necessarily "typ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transandinomys Talamancae
''Transandinomys talamancae'' is a rodent in the family Cricetidae that occurs from Costa Rica to southwestern Ecuador and northern Venezuela. Its habitat consists of lowland forests up to above sea level. With a body mass of , it is a medium-sized rice rat. The fur is soft and is reddish to brownish on the upperparts and white to buff on the underparts. The tail is dark brown above and lighter below and the ears and feet are long. The vibrissae (whiskers) are very long. In the skull, the rostrum (front part) is long and the braincase is low. The number of chromosomes varies from 34 to 54. The species was first described in 1891 by Joel Asaph Allen and thereafter a variety of names, now considered synonyms, were applied to local populations. It was lumped into a widespread species "''Oryzomys capito''" (now ''Hylaeamys megacephalus'') from the 1960s until the 1980s and the current allocation of synonyms dates from 1998. It was placed in the genus ''Oryzomys'' until 2006, as ''O ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxa Named By Outram Bangs
In biology, a taxon (back-formation from ''taxonomy''; plural taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking, especially if and when it is accepted or becomes established. It is very common, however, for taxonomists to remain at odds over what belongs to a taxon and the criteria used for inclusion. If a taxon is given a formal scientific name, its use is then governed by one of the nomenclature codes specifying which scientific name is correct for a particular grouping. Initial attempts at classifying and ordering organisms (plants and animals) were set forth in Carl Linnaeus's system in ''Systema Naturae'', 10th edition (1758), as well as an unpublished work by Bernard and Antoine Laurent de Jussieu. The idea of a unit-based system of biological classification was first made widely available in 1805 in the intro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mammals Described In 1902
Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant species of mammals have been described divided into 29 orders. The largest orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla (cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, seals, and others). In terms of cladistics, which reflects evolutionary history, mammals are the only living members of the Synapsida (synapsids); this clade, together with Saurops ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodents Of Central America
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 incisors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Museum Of Natural History
The American Museum of Natural History (abbreviated as AMNH) is a natural history museum on the Upper West Side of Manhattan in New York City. In Theodore Roosevelt Park, across the street from Central Park, the museum complex comprises 26 interconnected buildings housing 45 permanent exhibition halls, in addition to a planetarium and a library. The museum collections contain over 34 million specimens of plants, animals, fossils, minerals, rocks, meteorites, human remains, and human cultural artifacts, as well as specialized collections for frozen tissue and genomic and astrophysical data, of which only a small fraction can be displayed at any given time. The museum occupies more than . AMNH has a full-time scientific staff of 225, sponsors over 120 special field expeditions each year, and averages about five million visits annually. The AMNH is a private 501(c)(3) organization. Its mission statement is: "To discover, interpret, and disseminate—through scientific research and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephelomys Albigularis
''Nephelomys albigularis'', also known as the white-throated oryzomys or Tomes's rice rat, is a species of rodent in the genus '' Nephelomys'' of family Cricetidae. Described in 1860, it was the first ''Nephelomys'' species to be discovered. It was originally described in the defunct genus '' Hesperomys'' as ''Hesperomys albigularis'' and considered related to the much smaller ''H. longicaudatus'' (currently ''Oligoryzomys longicaudatus''). By 1894, it was placed in ''Oryzomys'', as ''Oryzomys albigularis'', and associated with what is now '' Nephelomys meridensis''. In the early 1960s, the scope of the species was considerably expanded to include most of the species that are now in ''Nephelomys'', as well as a single name, ''boliviae'', that is currently a synonym of '' Euryoryzomys nitidus''. From 1976 on, several of these were reinstated as separate species.Musser and Carleton, 2005, p. 1145 In 2006, a phylogenetic analysis by Marcelo Weksler of the oryzomyine tribe, in which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephelomys Meridensis
''Nephelomys meridensis'', also known as the Mérida oryzomys,Musser and Carleton, 2005, p. 1151 is a species of rodent in the genus ''Nephelomys'' of family Cricetidae.Weksler et al., 2006, p. 18 It is found in cloud forest in the Sierra Nevada de Mérida of western Venezuela at elevations from 1100 to 4000 m. It is solitary, nocturnal and terrestrial, and has a varied diet. ''N. meridensis'' has thick fur, which is about 11 mm long at the back. The color of the upperparts is rufous, with brown on the head, and becomes lighter towards the sides. The coloration of the underparts, which is well demarcated from that of the upper parts, is greyish, with a pure white area at the chest. The very large ears are covered with thin dark hairs. The hand and feet, whitish in color, are sparsely haired. The tail is brown above and somewhat paler below, and is not well-furred. The incisive foramina, openings in the palate before the molars, are short. In the holotype, the head and body le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Preputial Gland
Preputial glands are exocrine glands that are located in the folds of skin front of the genitals of some mammals. They occur in several species, including mice, ferrets, rhinoceroses, and even-toed ungulates and produce pheromones. The glands play a role in the urine-marking behavior of canids such as gray wolves and African wild dogs. The preputial glands of female animals are sometimes called clitoral glands. The preputial glands of male musk deer produce strong-smelling deer musk which is of economic importance, as it is used in perfumes. Human homologues There is debate about whether humans have functional homologues to preputial glands. Preputial glands were first noted by Edward Tyson and in 1694 fully described by William Cowper who named them Tyson's glands after Tyson. They are described as modified sebaceous glands located around the corona and inner surface of the prepuce of the human penis. They are believed to be most frequently found in the balanopreputial sulcus. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auditory Bulla
The tympanic part of the temporal bone is a curved plate of bone lying below the squamous part of the temporal bone, in front of the mastoid process, and surrounding the external part of the ear canal. It originates as a separate bone (tympanic bone), which in some mammals stays separate through life. Evolutionarily, a portion of it is derived from the angular bone of the reptilian lower jaw. Surfaces Its postero-superior surface is concave, and forms the anterior wall, the floor, and part of the posterior wall of the bony ear canal. Medially, it presents a narrow furrow, the ''tympanic sulcus'', for the attachment of the tympanic membrane. Its antero-inferior surface is quadrilateral and slightly concave; it constitutes the posterior boundary of the mandibular fossa, and is in contact with the retromandibular part of the parotid gland. Borders Its lateral border is free and rough, and gives attachment to the cartilaginous part of the ear canal. Internally, the tympani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outram Bangs
Outram Bangs (January 12, 1863 – September 22, 1932) was an American zoologist. Biography Bangs was born in Watertown, Massachusetts, as the second son of Edward and Annie Outram (Hodgkinson) Bangs. He studied at Harvard from 1880 to 1884, and became Curator of Mammals at the Harvard Museum of Comparative Zoology in 1900. He died at his summer home at Wareham, Massachusetts. Works''The Florida Deer''Proceedings of the Biological Society of Washington 10:25–28 (1896)''The hummingbirds of the Santa Marta Region of Colombia''American Ornithologists' Union, New York (1899)''The Florida Puma''Proceedings of the Biological Society of Washington 13:15–17. (1899)''The Mammals and Birds of the Pearl Islands, Bay of Panama''Harvard University Museum of Comparative Zoology, Bulletin 46 (8) : 137–160 (1905) with John Eliot Thayer''Notes on the Birds and Mammals of the Arctic Coast of East Siberia''New England Zoological Club, Proceedings, 5 : 1–66 (1914) with Glover Morrill Allen a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nephelomys Pirrensis
''Nephelomys pirrensis'', also known as the Mount Pirre rice rat,Goldman, 1920, p. 100 is a species of rodent in the genus ''Nephelomys'' of family Cricetidae. Its type locality is at Mount Pirri or Pirre in eastern Panama, at an altitude of ,Goldman, 1913, p. 5 and it has also been recorded on Mount Tacarcuna. ''N. pirrensis'' is a relatively large species. The color of the upperparts is brown and becomes lighter towards the sides. The throat is gray and the other parts of the underparts are buffy. The nose, ears, and forefeet are blackish and the thinly haired hindfeet are dark brown. The tail is dark brown above and a little paler below.Goldman, 1913, p. 6 Juveniles have darker fur. It is similar in size to '' N. devius'', which occurs further west in Costa Rica, but is somewhat darker and has smaller auditory bullae. In six specimens, the total length ranges from , the length of the tail vertebrae from , and the hindfoot length from . It lives in holes under rocks and logs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
