This is a small rat with a head-and-body length of about and a tail of about . The blackish-brown dorsal fur is long, dense and somewhat stiff, each individual hair having a reddish-brown base, a broad black band, a narrower yellowish band and a black tip. The underparts are creamy-grey with dark speckles. The fore-feet have blackish hairs on top while those on the hind feet are greyish-red, the toes being black and the claws pale. The tail is bicoloured, the upper surface being clad with dark scales and blackish hairs, and the underside with pale scales and grey hairs with white tips. There is a difference in colour between populations on either side of the
Great Rift Valley; those to the east have a more intense, reddish-brown dorsal surface and yellower underparts. The
chromosome number is 2n = 54 which distinguishes it from the
short-tailed brush-furred rat (
Lophuromys brevicaudus) where it is 2n = 68. ==Distribution and habitat==