This subspecies of the brown lemur exhibits great variation between the sexes. Both males and females have a thick brown coat.
Females have a charcoal-brown face.
Males have creamy white hair on their head contrasted by a black face and snout. They do not occur in high densities in their home ranges. It is likely there is a great similarity to other subspecies of the brown lemur, although this is presumption. A great reference book on primates is Noel Rowe's The Pictorial Guide to the Living Primates . It may be a bit difficult to find and it looks pricey for the size, but it is well worth it for the wealth of lemur information within.