Its soft, dense fur is dark or reddish brown both above and below, and its blackish ears are broadly rounded. It has been recorded in rainforests, swamps, montane and coastal forests, and savannas; southern Cameroon is among its range records.
For nominate crassulus, HMW 2019 describes dark or reddish-brown dorsal pelage and an underside of the same color, broadly rounded blackish ears, and blackish-brown wing membranes.
It is recorded in a range of habitats, including rainforests, swamps, montane and coastal forests, and savannas.
An extinction-risk assessment has not been added yet.