The Ugi naked-tailed rat is the smallest species within the genus
Solomys. It has a snout-vent-length of 187 mm. The tail length is 194 mm, the hind food length is 39 mm and the ear length 27 mm. The general colour of the fur is light ashy grey, somewhat grizzly, and pencilled with black. The base of the hair is mouse colour. The tips are almost white. The tail is bare and scaly. The blackish whiskers are long. The ears are small, inside grey, on the outside covered with minute hairs. ==Type locality==