Hemibelideus

The lemuroid ringtail possum (Hemibelideus lemuroides), also known as the lemur-like ringtail possum or the brushy-tailed ringtail, is a truly singular member of the ringtail possum group. It was once thought that they were greater gliders (Petauroides volans); Hemibelideus literally translates as "half-glider" (belideus being a diminutive form of Petaurus, meaning "glider"). Named for their facial characteristics visually similar to the unrelated primate lemurs, with short snouts, large, forward-facing eyes and small ears, they are similar to other gliding possums in their musculo-skeletal adaptations to accommodate a leaping lifestyle. Their long, prehensile tail is a further adaptation to their arboreal habitat.

It has a bushier tail when compared to other ringtails, and can be distinguished from the greater glider by its lack of gliding membrane and much shorter, hairless ears. It is a social possum, and is found in two main colour forms: the more common brownish-gray form, with a yellowish underbelly, and a rare white form, which occurred in the Daintree Rainforest and was last seen in 2005 in Mount Lewis National Park, and in 2008 believed to have been nearly extinct.