Scotinomys is a genus of rodent, the singing mice, in the family Cricetidae. Together with Baiomys, 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.Hooper, E. T. (1972). A synopsis of the rodent genus Scotinomys. Occasional Papers of the Museum of Zoology, University of Michigan, 665, 1-13. 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 the Museum of Zoology, University of Michigan, 151, 1-52. with S. xerampelinus generally dominant over S. teguina where the species occur together.
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