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Cerradomys Scotti
''Cerradomys scotti'', also known as Lindbergh's oryzomys, is a rodent species from South America in the genus ''Cerradomys''. It is terrestrial and is found in the cerrado (savanna) ecozone of south central Brazil, Bolivia and Paraguay. The species is common and appears to tolerate a degree of agricultural habitat modification. It was first described in 2002 as ''Oryzomys scotti'', after zoologist Scott Lindbergh. In 2004, another new species, ''Oryzomys andersoni'', was described by a team from Texas Tech University on the basis of a specimen taken at Pozo Mario, Santa Cruz Department, southeastern Bolivia. It was named after eminent mammalogist Sydney Anderson in honor of his contributions to the study of Bolivian mammals.Brooks et al., 2004, p. 3 It was subsequently recognized as belonging to the same species as ''Oryzomys scotti'' on the basis of morphological and molecular evidence. In 2006, the species was transferred to the new genus ''Cerradomys'', so that it became know ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodent
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 i ... [...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] |
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] |
Mazama Gouazoupira
The gray brocket (''Mazama gouazoubira''), also known as the brown brocket, is a species of brocket deer from northern Argentina, Bolivia, southern Peru, eastern and southern Brazil, Paraguay, and Uruguay. It formerly included the Amazonian brown brocket (''M. nemorivaga'') and sometimes also the Yucatan brown brocket (''M. pandora'') as subspecies.Medellín, R. A., A. L. Gardner, J. M. Aranda (1998). ''The taxonomic status of the Yucatán brown brocket, Mazama pandora (Mammalia: Cervidae).'' Proceedings of the Biological Society of Washington 111 (1): 1–14. Unlike other species of brocket deer in its range, the gray brocket has a gray-brown fur without reddish tones.Wilson, D. E., Mittermeier, R. A., editors (2011). ''Handbook of the Mammals of the World, vol. 2 (Hoofed Mammals), p. 441. Name The scientific name of the gray brocket deer comes from Félix de Azara's ''gouazoubira''. Azara was the first to provide a quality description of the small deer in the Americas, and he r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red Brocket
The red brocket (''Mazama americana'') is a species of brocket deer from forests in South America, ranging from northern Argentina to Colombia and the Guianas. It also occurs on the Caribbean island of Trinidad (it also occurred on the island of Tobago until very recent historical times, but has been extirpated there). Taxonomy It formerly included the Central American red brocket (''M. temama'') and sometimes the Yucatan brown brocket (''M. pandora'') as subspecies. Considerable taxonomic confusion still exists for the populations remaining in the red brocket. Pending a solution to this, it has been evaluated as data deficient by the IUCN, though as presently defined, it is the most widespread species of brocket. It is sympatric with the smaller Amazonian brown brocket over much of its range (the latter tends to have significantly lower population densities). The karyotype A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a spe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crab-eating Fox
The crab-eating fox (''Cerdocyon thous''), also known as the forest fox, wood fox, bushdog (not to be confused with the bush dog) or maikong, is an extant species of medium-sized canid endemic to the central part of South America since at least the Pleistocene epoch. Like South American foxes, which are in the genus ''Lycalopex'', it is not closely related to true foxes. ''Cerdocyon'' comes from the Greek words ''kerdo'' (meaning fox) and ''kyon'' (dog) referring to the dog- and fox-like characteristics of this animal. Taxonomy and evolution The crab-eating fox was originally described as ''Canis thous'' by Linnaeus (1766), and first placed in its current genus ''Cerdocyon'' by Hamilton-Smith in 1839. Cerdocyonina is a tribe which appeared around 6.0 million years ago (Mya) in North America as ''Ferrucyon avius'' becoming extinct by around 1.4–1.3 Mya. living about . This genus has persisted in South America from an undetermined time, possibly around 3.1 Mya, and continues ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nine-banded Armadillo
The nine-banded armadillo (''Dasypus novemcinctus''), also known as the nine-banded long-nosed armadillo or common long-nosed armadillo, is a mammal found in North, Central, and South America, making it the most widespread of the armadillos. Its ancestors originated in South America, and remained there until the formation of the Isthmus of Panama allowed them to enter North America as part of the Great American Interchange. The nine-banded armadillo is a solitary, mainly nocturnalArmadillo Observation Msu.edu. Retrieved on October 17, 2013. Ksr.ku.edu. Retrieved on October 17, 2013. animal, found in many kinds of habitats, from mature and second ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dasyprocta Punctata
The Central American agouti (''Dasyprocta punctata'') is a species of agouti from the family Dasyproctidae. The main portion of its range is from Chiapas and the Yucatan Peninsula (southern Mexico), through Central America, to northwestern Ecuador, Colombia and far western Venezuela. A highly disjunct population is found in southeastern Peru, far southwestern Brazil, Bolivia, western Paraguay and far northwestern Argentina. The disjunct population has been treated as a separate species, the brown agouti (''Dasyprocta variegata''),Emmons, L. H. (1997). ''Neotropical Rainforest Mammals.'' Pp. 227-229. 2nd edition. but a major review of the geographic variation is necessary. The Central American agouti has also been introduced to Cuba and the Cayman Islands.Long, J. L. (2003). Introduced Mammals of the World: Their History, Distribution and Influence. Csiro Publishing, Collingwood, Australia. Though some populations are reduced due to hunting and deforestation, large populations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galea Spixii
Spix's yellow-toothed cavy (''Galea spixii'') is a rodent, a cavy species from South America. It is found in Bolivia east of the Andes and much of south central to northeastern Brazil. The species is found in open savanna and semiarid habitats, such as the Cerrado and Caatinga of Brazil. Its karyotype A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is disce ... is 2n = 64 and FN = 118. ''Galea spixii'' and ''G. musteloides'' are similar and may actually be the same species. ''G. spixii'' tolerates a wide range of environmental changes, though they need open habitats. It is the most stable species within the ''Galea'' group because it is extremely abundant throughout its range. Gestation is about fifty days. Litter size ranges from one to five, with an average of three. They have hair and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sciurus Spadiceus
The southern Amazon red squirrel (''Sciurus spadiceus''), is a squirrel species from South America where it inhabits forests in much of north-western South America east of the Andes. Three subspecies are currently recognised. It is a dark red colour, or a dark brown grizzled with ochre, has whitish underparts and grows to a total length of , including a very long tail. It spends much of its time on the ground in the undergrowth and feeds largely on nuts. Little is known of its breeding habits, but it is a sociable species, several individuals often feeding together in one tree. This squirrel faces no particular threats, has a wide range and is relatively common, and the International Union for Conservation of Nature lists it as a "least-concern species". Description One of the largest species of squirrel in its range, ''S. spadiceus'' ranges from in total length, including a very long, , tail. Males and females are similarly sized, and weigh between . The fur is typically reddish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proechimys Longicaudatus
The long-tailed spiny rat (''Proechimys longicaudatus'') is a spiny rat species found in Bolivia, Brazil and Paraguay. Description The long-tailed spiny rat is a large rat with a head-and-body length of between and a tail length of . The fur is less bristly than in other related species. The upper parts are a glossy chestnut colour becoming more orange on the flanks. The underparts are white, and there is a clear line separating upper and lower parts. The tail is chestnut above and pale below. The tails are missing on some individuals, reflecting the lizard-like ability of many echimyids to detach their tails when attacked by predators. Distribution and habitat This species has a range in South America extending from southern Bolivia and northern Paraguay to western and central Brazil. It is terrestrial and inhabits dry primary and secondary forest, as well as cerrado and habitats with cleared areas and patches of forest. It usually occurs at altitudes below but has been recor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monodelphis Domestica
The gray short-tailed opossum (''Monodelphis domestica'') is a small South American member of the family Didelphidae. Unlike most other marsupials, the gray short-tailed opossum does not have a true pouch. The scientific name ''Monodelphis'' is derived from Greek and means "single womb" (referring to the lack of a pouch) and the Latin word ''domestica'' which means "domestic" (chosen because of the species' habit of entering human dwellings). It was the first marsupial to have its genome sequenced. The gray short-tailed opossum is used as a research model in science, and is also frequently found in the exotic pet trade. It is also known as the Brazilian opossum, rainforest opossum and in a research setting the laboratory opossum. Description Gray short-tailed opossums are relatively small animals, with a superficial resemblance to voles. In the wild they have head-body length of and weigh ; males are larger than females. However, individuals kept in captivity are typically mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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