[4] Previous to a 2006 genetic analysis showing the species to be distinct, it was thought to be a population of weasel sportive lemur (Lepilemur mustelinus).

[6] Seal's sportive lemur has long, thick fur that is uniformly light chocolate-brown to reddish-brown above and lighter brownish grey below with cream-tipped hairs on the sides of the belly.

Within its distribution, Seal's Sportive Lemur occupies mid to high altitude humid rainforests, preferring undisturbed low-canopy forests that have good availability of sleeping holes in old trees.

[4] The main threats facing Seal's sportive lemur are habitat loss, hunting and climate change.

[7] Seal's sportive lemur occurs in some protected areas such as the Anjanaharibe-Sud Special Reserve and Makira Natural Park.