The flat-headed kusimanse has a head to body length of with a long tail measuring. The body is slender and elongated with dark brown or black fur and a mane on the neck. There are five toes in front and rear paws with the front paws have strong claws. The males are slightly larger than the females. An average male weighs about, while an average female weighs between. Both sexes have a pair of anal scent glands located in the hind part of the body.
The flat headed kusimanse is mostly terrestrial, and often forages on rocks, and burrows for termite mounds. It can climb trees, and has a particular affinity towards the fruits of African oil palm trees. Its arboreal skills serve as a refuge from predators, and for other activities. It can be tamed and is cooperative with humans. It is probably diurnal and lives in groups that roam around its territory without a fixed structure. It is generally carnivorous and looks for invertebrates and small vertebrates on the forest floor or in rottedtree trunks.