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New World Rats And Mice
The New World rats and mice are a group of related rodents found in North and South America. They are extremely diverse in appearance and ecology, ranging from the tiny '' Baiomys'' to the large '' Kunsia''. They represent one of the few examples of muroid rodents (along with the voles) in North America, and the only example of muroid rodents to have made it into South America. The New World rats and mice are often considered part of a single subfamily, Sigmodontinae, but the recent trend among muroid taxonomists is to recognize three separate subfamilies. This strategy better represents the extreme diversity of species numbers and ecological types. Some molecular phylogenetic studies have suggested that the New World rats and mice are not a monophyletic group, but this is yet to be confirmed. Their closest relatives are clearly the hamsters and voles. The New World rats and mice are divided into 3 subfamilies, 12 tribes, and 84 genera. Classification *Family Cricetida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene followed the Oligocene and preceded the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by distinct global events but by regionally defined transitions from the warmer Oligocene to the cooler Pliocene Epoch. During the Early Miocene, Afro-Arabia collided with Eurasia, severing the connection between the Mediterranean and Indian Oceans, and allowing the interchange of fauna between Eurasia and Africa, including the dispersal of proboscideans and Ape, hominoids into Eurasia. During the late Miocene, the conn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nyctomys
Sumichrast's vesper rat (''Nyctomys sumichrasti'') is a rodent of the family Cricetidae found from southern Mexico to Panama. It is named for François Sumichrast, the collector of the first specimen, and its closest relative is probably Hatt's vesper rat, a similar, but slightly smaller, species from the Yucatán Peninsula. Description Sumichrast's vesper rat is a relatively small rat, with an adult length of , not including the tail, which is only slightly shorter. Males and females are of similar size, with both weighing between . It is one of the more brightly coloured rats, with a reddish or orange back and creamy to white underparts. The rats have a thick pelt of soft fur, which extends over the entire length of the tail, and is absent only on the soles of the feet. The eyes are relatively large, and surrounded by a narrow ring of black hair, while the whiskers are long and the ears small. To aid in climbing, the claws are compressed and curved, and the first toe on each ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peromyscus
''Peromyscus'' is a genus of rodents. They are commonly referred to as deer mice or deermice, not to be confused with the chevrotain or "mouse deer". They are New World mice only distantly related to the common house and laboratory mouse, ''Mus musculus''. From this distant relative, ''Peromyscus'' species are distinguished by relatively larger eyes, and also often two-tone coloring, with darker colors over the dorsum (back), and white abdominal and limb hair-coloring. In reference to the coloring, the word ''Peromyscus'' comes from Greek words meaning "booted mouse". They are also accomplished jumpers and runners by comparison to house mice, and their common name of "deer mouse" (coined in 1833) is in reference to both this agility as well as their two-toned coloring. The most common species of deer mice in the continental United States are two closely related species, '' P. maniculatus'' and '' P. leucopus''. In the United States, ''Peromyscus'' is the most populous mammali ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reithrodontomyini
The Neotominae are a subfamily of the family Cricetidae. They consist of four tribes, 16 genera, and many species of New World rats and mice, predominantly found in North America. Among them are the well-known deer mice, packrats, and grasshopper mice. Neotomines are related to the other two subfamilies of mice in the New World, the Sigmodontinae and Tylomyinae. Many authorities place them all in a single subfamily, Sigmodontinae. Taxonomy *SUBFAMILY NEOTOMINAE **Tribe Baiomyini ***Genus '' Baiomys'' - pygmy mice **** Southern pygmy mouse, ''Baiomys brunneus'' **** Mexican pygmy mouse, ''Baiomys musculus'' **** Northern pygmy mouse, ''Baiomys taylori'' ***Genus '' Scotinomys'' - brown mice **** Alston's brown mouse, ''Scotinomys teguina'' **** Chiriqui brown mouse, ''Scotinomys xerampelinus'' **Tribe Neotomini ***Genus '' Neotoma'' - pack rats ****Subgenus ''Neotoma'' ***** White-throated woodrat, ''Neotoma albigula'' ***** Tamaulipan woodrat, ''Neotoma angustapalata'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochrotomys
The golden mouse (''Ochrotomys nuttalli'') is a species of New World mouse. It is usually 5–8 inches (12–25 cm) in body length, and has a soft pelage that ranges from golden-brownish to burnt orange in color. The genus name comes from the Greek words, ''ochra'', meaning "ocher", a yellow or brown earth pigment; ''oto-'' (from ''ous''), meaning "ear"; and ''mys'', meaning "mouse". Geographic range The golden mouse lives and breeds in the southeastern United States, including southeastern Missouri to West Virginia and southern Virginia, south to eastern Texas, the Gulf Coast, and central Florida. The golden mouse is currently regarded as a species with a secure population that is not severely fragmented throughout its range. Habitat Golden mice live in thick woodlands, swampy areas, among vines, and within small trees and shrubs. These animals especially like to live where honeysuckle, greenbrier, and red cedar grow. Golden mice in the south-central region of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nelsonia (rodent)
''Nelsonia'' is a genus of rodent in the family Cricetidae, found in Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar .... It contains the following species: * Goldman's diminutive woodrat (''Nelsonia goldmani'') * Diminutive woodrat (''Nelsonia neotomodon'') References *Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. Rodent genera Taxa named by Clinton Hart Merriam Taxonomy articles created by Polbot {{Cricetidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hodomys
Allen's woodrat (''Hodomys alleni'') is a species of rodent in the family Cricetidae. It is the only species in the genus ''Hodomys''. Distribution This woodrat species is endemic to Mexico. It is native from southern Sinaloa to Oaxaca states. It is found in interior México in the basins of the Río Balsas of central Puebla and Río Tehuacán of northern Oaxaca. Its natural habitat is subtropical or tropical dry shrubland Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominance (ecology), dominated by shrubs, often also including grasses, herbaceous plant, herbs, and geophytes. Shrubland may either occur naturally o .... References *Musser, G. G. and M. D. Carleton. 2005. Superfamily Muroidea. pp. 894–1531 ''in'' Mammal Species of the World a Taxonomic and Geographic Reference. D. E. Wilson and D. M. Reeder eds. Johns Hopkins University Press, Baltimore. Neotominae Endemic mammals of Mexico woodrat, Allens ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xenomys
The Magdalena rat (''Xenomys nelsoni'') is a species of rodent in the family Cricetidae which is found only in a small region of western Mexico. It is the only species in the genus ''Xenomys''. The common name comes from the village where the first specimen was collected, and the second part of the scientific name refers to the collector. Description The Magdalena rat is a relatively large member of its family, measuring in length, including the tail. Adults weigh an average of . The general body colour is cinnamon to yellowish brown, being paler on the head and fading to creamy white on the underparts. It can be distinguished from other local rat-like species by the presence of white spots above the eyes and behind the ears; the cheeks are also marked with white fur. The tail is both hairy and scaly, and is dark brown in colour. Distribution and habitat The species is endemic to Colima and southwest Jalisco, along the Pacific coast of Mexico. It is estimated to inhabit an a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotoma
A pack rat or packrat, also called a woodrat or trade rat, are any species in the North and Central American rodent genus ''Neotoma''. Pack rats have a rat-like appearance, with long tails, large ears, and large, black eyes. Pack rats are noticeably larger than deer mice, harvest mice, and grasshopper mice, and are usually somewhat larger than cotton rats. Species ''Neotoma'' includes three subgenera, Daggers (†) mark extinct species: * Subgenus ''Neotoma'' ** '' Neotoma albigula'' - white-throated woodrat *** '' Neotoma albigula varia'' - Turner Island woodrat ** '' Neotoma angustapalata'' - Tamaulipan woodrat ** '' Neotoma bryanti'' - Bryant's woodrat *** '' Neotoma bryanti anthonyi'' - Anthony's woodrat *** †'' Neotoma bryanti bunkeri'' - Bunker's woodrat *** †'' Neotoma bryanti martinensis'' - San Martín Island woodrat ** '' Neotoma chrysomelas'' - Nicaraguan woodrat ** '' Neotoma devia'' - Arizona woodrat ** '' Neotoma ferruginea'' - Guatemala woodrat ** †'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neotomini
The Neotominae are a subfamily of the family Cricetidae. They consist of four tribes, 16 genera, and many species of New World rats and mice, predominantly found in North America. Among them are the well-known deer mice, packrats, and grasshopper mice. Neotomines are related to the other two subfamilies of mice in the New World, the Sigmodontinae and Tylomyinae. Many authorities place them all in a single subfamily, Sigmodontinae. Taxonomy *SUBFAMILY NEOTOMINAE **Tribe Baiomyini ***Genus ''Baiomys'' - pygmy mice **** Southern pygmy mouse, ''Baiomys brunneus'' **** Mexican pygmy mouse, ''Baiomys musculus'' **** Northern pygmy mouse, ''Baiomys taylori'' ***Genus '' Scotinomys'' - brown mice **** Alston's brown mouse, ''Scotinomys teguina'' **** Chiriqui brown mouse, ''Scotinomys xerampelinus'' **Tribe Neotomini ***Genus ''Neotoma'' - pack rats ****Subgenus ''Neotoma'' ***** White-throated woodrat, ''Neotoma albigula'' ***** Tamaulipan woodrat, ''Neotoma angustapalata'' *****� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scotinomys
''Scotinomys'' is a genus of rodent, the singing mice, in the family Cricetidae. Together with ''Baiomys ''Baiomys'', the New World pygmy mice, is a genus of rodents in the family Cricetidae. Together with '' Scotinomys'', it forms the tribe Baiomyini. It contains the smallest rodents in North America. It currently contains three extant species: ...'', it forms the tribe Baiomyini. It contains the following species: * Alston's brown mouse (''Scotinomys teguina'') * Chiriqui brown mouse (''Scotinomys xerampelinus'') They are found in mountainous areas in Central America, at altitudes of 1000 m to at least 3500 m. As their common name indicates, they are notable for their acoustic communication. They are insectivorous. The two species show substantial divergence in behaviour and reproduction,Hooper, E. T., & Carleton, M. D. (1976). Reproduction, growth and development in two contiguously allopatric rodent species, genus ''Scotinomys''. ''Miscellaneous Publications of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
