Baird, S. F. 1857. Mammals: General report upon the zoology of the several Pacific railroad routes. Reports of explorations and surveys to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean. 8(1): 53.
Matamoros, vicinity of, Tamaulipas, Mexico, North America
Animalia, Chordata, Vertebrata, Mammalia, Eutheria, Soricomorpha, Soricidae, Soricinae