| Mexican Small-eared Shrews are the size of adults when they leave the nest, so the age of shrews caught in traps is not easily determined. However, there are specimens in museum collections that are probably young, because their fur looks fresh and their teeth do not look worn down. These have been collected in all months of the year, which suggests that the shrews breed year-round. Mexican Small-eared Shrews are medium-sized and have relatively short tails. They are known from humid mountain oak or pine forests, where they use small runways under fallen logs and forage among mosses and lichens on the ground. Fossils from the Pleistocene have been found in Mexico.
Total Length: 83-112 mm; Tail: averages 33-42% of H&B length
Coues, E., 1877. Bulletin of the U.S. Geological and Geographical Survey of the Territories, 3:652.
Mammal Species of the World (opens in a new window).
Mammalian Species, American Society of Mammalogists' species account (opens in a new window).