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Cryptotis
The genus ''Cryptotis'' is a group of relatively small shrews with short ears, which are usually not visible, and short tails, commonly called small-eared shrews. They have 30 teeth and are members of the red-toothed shrew subfamily. Since 1992, Neal Woodman (in cooperation with Robert Timm) at the United States National Museum has been in the process of revising the genus. To date, this has resulted in an increase in the number of species from 12 to 30. Members of the genus are found mainly in Central America; the North American least shrew, ''C. parva'', is the only species found north of Mexico. The genus occurs as far south as northern Peru and as far east as western Venezuela in South America. It is the only soricomorph genus found south of Guatemala. The limited diversity and restricted northern distribution of shrews in South America implies that the group entered the continent relatively recently from Central America, where they are more diverse, presumably as part of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Least Shrew
The North American least shrew (''Cryptotis parvus'') is one of the smallest mammals, growing to be only up to 3 inches long. It has a long pointed snout and a tail never more than twice the length of its hind foot. The dense fur coat is either grayish-brown or reddish-brown with a white belly. Its fur becomes lighter in the summer and darker in the winter. Although similar in appearance to several species of rodents, all shrews are members of the order Eulipotyphla and should not be mistaken for a member of the order Rodentia. The North American least shrew's eyes are small and its ears are completely concealed within its short fur, giving it very poor eyesight and hearing. Distribution It is found from the grasslands of southern Canada through the eastern and central United States and Mexico. In Canada, only a small population of this animal has been found at Long Point in Ontario. The North American least shrew mostly dwells in mesic grasslands, marshes, and meadows. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptotis Parva
The North American least shrew (''Cryptotis parvus'') is one of the smallest mammals, growing to be only up to 3 inches long. It has a long pointed snout and a tail never more than twice the length of its hind foot. The dense fur coat is either grayish-brown or reddish-brown with a white belly. Its fur becomes lighter in the summer and darker in the winter. Although similar in appearance to several species of rodents, all shrews are members of the order Eulipotyphla and should not be mistaken for a member of the order Rodentia. The North American least shrew's eyes are small and its ears are completely concealed within its short fur, giving it very poor eyesight and hearing. Distribution It is found from the grasslands of southern Canada through the eastern and central United States and Mexico. In Canada, only a small population of this animal has been found at Long Point in Ontario. The North American least shrew mostly dwells in mesic grasslands, marshes, and meadows. Mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goodwin's Broad-clawed Shrew
Goodwin's broad-clawed shrew (''Cryptotis goodwini'') is a species of mammal in the shrew family, Soricidae. Body length and size of adults average 9.49 cm and 7.0 grams respectively making it a relatively larger shew. What distinguishes this from other shrews are its long claws. Habitat They range from the south part of the Siera Madre of Chiapas, to the Sierra Madra of Guatemala to the west of El Salvador and Honduras. Within Mexico it is found only in the state of Chiapas. In this mountain range it has been found ranging from 915 m to 3350 m. These forests are known to be temperate clouded. However, the ''C. goodwini'' can also be found in pine, oak, cypress, fir forests. They like other shrews in the genus ''Cryptotis'' tend to live a fossorial lifestyle burrowing in the ground for both food and shelter. Description The tail of ''C. goodwini'' shrew is short and it accounts for approximately 35% of their body length. The forelimbs of the shrew with its long claws di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colombian Small-eared Shrew
The Colombian small-eared shrew (''Cryptotis colombiana'') is a species of mammal in the family Soricidae. It is endemic to Colombia, where it is known from the Cordillera Central in Antioquia Department at elevations from . It is found in montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial f ... and cultivated areas. It resembles '' C. brachyonyx''. References Cryptotis Mammals of Colombia Mammals of the Andes Endemic fauna of Colombia Mammals described in 1993 {{redtoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-toothed Shrew
The red-toothed shrews of the subfamily Soricinae are one of three living subfamilies of shrews, along with Crocidurinae (white-toothed shrews) and Myosoricinae (African white-toothed shrews). In addition, the family contains the extinct subfamilies Limnoecinae, Crocidosoricinae, Allosoricinae and Heterosoricinae. These species are typically found in North America, northern South America, Europe and northern Asia. The enamel of the tips of their teeth is reddish due to iron pigment. The iron deposits serve to harden the enamel and are concentrated in those parts of the teeth most subject to wear. The list of species is: * Tribe Anourosoricini ** Genus '' Anourosorex'' (Asian mole shrews) *** Assam mole shrew, ''A. assamensis'' *** Giant mole shrew, ''A. schmidi'' *** Chinese mole shrew, ''A. squamipes'' *** Taiwanese mole shrew, ''A. yamashinai'' * Tribe Blarinellini ** Genus ''Blarinella'' (Asiatic short-tailed shrews) *** Indochinese short-tailed shrew, ''B. griselda'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guatemalan Broad-clawed Shrew
The Guatemalan broad-clawed shrew (''Cryptotis griseoventris'') is a species of small-eared shrew in the family Soricidae. It is known from Guatemala and the Mexican state of Chiapas, where it has been found in montane forests of oak, pine and fir, as well as secondary forest, at elevations above . It feeds on insects. Deforestation and habitat fragmentation are major threats, particularly in Chiapas. It was formerly considered conspecific Biological specificity is the tendency of a characteristic such as a behavior or a biochemical variation to occur in a particular species. Biochemist Linus Pauling stated that "Biological specificity is the set of characteristics of living organ ... with '' C. goldmani''. References Cryptotis Mammals of Mexico Mammals of Central America {{redtoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Mexican Broad-clawed Shrew
The Central Mexican broad-clawed shrew (''Cryptotis alticola'' ) is a species of mammal in the family Soricidae. It is found in the highlands above 2000 m in the Mexican states of Colima, Hidalgo, Jalisco, Michoacán, Mexico, and Puebla, Morelos, and in the Mexican Federal District Type locality: Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ..., Volcán Popocatépetl, 11,500 ft. (3505 m). References * Don E. Wilson & DeeAnn M. Reeder (editors). 2005Cryptotis alticola Mammal Species of the World. A Taxonomic and Geographic Reference (3rd ed), Johns Hopkins University Press, 2,142 pp. (Available from Johns Hopkins University Press, 1-800-537-5487 or (410) 516-6900, or aPress JHU. Cryptotis Endemic mammals of Mexico {{redtoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nelson's Small-eared Shrew
Nelson's small-eared shrew (''Cryptotis nelsoni'') is a species of mammal in the family Soricidae. It is endemic to eastern Mexico. The species was discovered by Edward William Nelson and Edward Alphonso Goldman in 1894, who collected a number of specimens from the slopes of the San Martín volcano in Veracruz, Mexico. The species was then not recorded again, and thought by many to be extinct, until being rediscovered in the same area in 2004 (as described in 2009). Its biology is essentially unknown. The Nelson's Small-Eared Shrew is considered to be one of the world's 100 most threatened species on the planet. Once thought extinct, they have been recently rediscovered in very small numbers. They live in high altitudes on the side of an inactive volcano A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honduran Small-eared Shrew
The Honduran small-eared shrew (''Cryptotis hondurensis'') is a species of mammal in the family Soricidae. It is found in Honduras and possibly in El Salvador, Guatemala, and Nicaragua. References Sources * Cryptotis Mammals of Central America Taxonomy articles created by Polbot Mammals described in 1992 {{redtoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Cordillera Small-footed Shrew
The Eastern Cordillera small-footed shrew (''Cryptotis brachyonyx'') is a species of mammal in the family Soricidae. It is endemic to Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ..., where it is known from the western slopes of the central Cordillera Oriental at elevations from . It resembles '' C. colombiana''. The species is only known from four individuals collected at two localities, the most recent record being from 1925. References Cryptotis Mammals of Colombia Mammals of the Andes Endemic fauna of Colombia Mammals described in 2003 {{redtoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptotis Mam
''Cryptotis mam'' is a species of mammal in the family Soricidae. It is endemic to Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H .... References Cryptotis Fauna of Guatemala Mammals described in 2010 {{redtoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptotis Lacertosus
''Cryptotis lacertosus'' is a species of mammal in the family Soricidae. It is endemic to Guatemala Guatemala ( ; ), officially the Republic of Guatemala ( es, República de Guatemala, links=no), is a country in Central America. It is bordered to the north and west by Mexico; to the northeast by Belize and the Caribbean; to the east by H .... References Cryptotis Fauna of Guatemala Mammals described in 2010 {{redtoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |