Full text can be accessed at http://www.bioone.org/doi/abs/10.2982/0012-8317(2005)94%5B203:SMCITU%5D2.0.CO%3B2Small mammals were sampled in the Udzungwa Mountains National Park, Tanzania, during 1995 and 1996. Twenty-four species, representing 16 genera were recorded for three orders: Insectivora, Chiroptera and Rodentia. Identifications and natural history information are presented for this poorly known fauna from a unique Eastern Arc Mountains habitat.