The red-toothed shrews of the subfamily Soricinae are one of three living subfamilies of shrews, along with Crocidurinae and Myosoricinae. 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 North American least shrew 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.
Goldman's broad-clawed shrew is a species of mammal in the family Soricidae. It is found in Guatemala and Mexico.
Goodwin's broad-clawed shrew 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.
The Mexican small-eared shrew is a species of mammal in the family Soricidae. It is endemic to Mexico.
The blackish small-eared shrew is a species of shrew in the family Soricidae. It is found in parts of Costa Rica, El Salvador, Guatemala, Honduras, Mexico, and Panama. An example specific habitat is the Petenes mangroves of the Yucatán.
Thomas's small-eared shrew is a species of mammal in the family Soricidae. It is found in Colombia, Ecuador, and Peru.
The Central Mexican broad-clawed shrew 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
The tropical small-eared shrew is a very small mammal of the family Soricidae. The species is found in the eastern highlands of Chiapas, Mexico, and parts of Belize and Guatemala. Until recently, it was considered a subspecies of the North American least shrew, but it has gained species status. Its relationship with the Central American least shrew still remains to be studied.
The Peruvian small-eared shrew is a species of mammal in the family Soricidae. It is known only from northern Peru, where it has been found in shrubby "elfin" cloud forest in the Andes at elevations from 2050 to 3150 m. The species may also be present in Ecuador. It has the southernmost range of any shrew in South America.
The Tamá small-eared shrew is a species of mammal in the family Soricidae. It is known from the Cordillera Oriental of Colombia and the Páramo de Tamá of western Venezuela, where it has been found primarily in cloud forest at elevations between 2380 and 3330 m. Its range includes Venezuela's El Tamá National Park. The closest relatives of the species are C. meridensis and C. thomasi.
The Guatemalan broad-clawed shrew 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 2,100 m (6,900 ft). It feeds on insects. Deforestation and habitat fragmentation are major threats, particularly in Chiapas. It was formerly considered conspecific with C. goldmani.
The Yucatan small-eared shrew is a species of mammal in the family Soricidae. It is mainly known from lowlands of Guatemala, Belize and Mexico's Yucatán Peninsula, where it has been found in dry scrubland and tropical dry forest at elevations below 100 m. It is threatened by deforestation.
The Central American least shrew is a species of mammal in the family Soricidae. It is found in the highlands and mid-elevations from the western part of the northern coast of Honduras to central Costa Rica. It is found in El Salvador, Honduras, Nicaragua, and Costa Rica. It was considered to be a subspecies of the North American least shrew until 2002.
Merriam's small-eared shrew is a species of mammal in the family Soricidae. It is found in Chiapas, Guatemala, El Salvador, Honduras, Nicaragua and Costa Rica.
