In some forms there is a fairly definite, almost white stripe across the back just behind the shoulders. Females have eight mammae. These rats dwell in forests and thickets. They are nocturnal but have been seen foraging during the day, at which time they behave as if they were almost blind, sitting on their haunches and sniffing in all directions. They can climb well, using the long tail for balancing, and can swim.
Reproduction takes place at various times of the year.
Litters numbered 1-5, most commonly 4, young. Sexual maturity was attained at about 20 weeks. These animals are timid but soon become tame in captivity and make delightful pets. They are in great demand as food by the native tribes. Studies have been made of their potential for domestic production of food.