The long-nosed potoroo (Potorous tridactylus) is a small, hopping, gerbil-like mammal native to forests and shrubland of southeastern Australia and Tasmania. A member of the rat-kangaroo family (Potoroidae), it lives alone and digs at night for fungi, roots, or small insects. It is also a marsupial (like kangaroos) and carries its young in a pouch. The long-nosed potoroo is threatened by habitat loss and introduced species such as cats or foxes. There are two subspecies: P. t. tridactylus on mainland Australia, and P. t. apicalis on Tasmania, with lighter fur. At first glance, the long-nosed potoroo with its pointed nose and grey-brown fur looks very much like a bandicoot — that is, until it hops away with its front feet tucked into its chest, revealing its close relationship with the kangaroo family. The long-nosed potoroo exhibits many morphological specializations such as an elongated pointed rostral region (nose), erect ears, large eyes, claws for digging, and long robust hind legs. It is only a small marsupial, with a body length between , and a semi-prehensile tail length of . As it is rarely seen in the wild, better indicators of its presence are the runways it makes through the undergrowth and the hollow diggings it leaves behind when feeding on underground roots and fungi. Taxonomy The species was first noted in 1790 by John White in a record of his journey to Botany Bay. The informal description named the animal as a "Poto Roo" or "Kangaroo Rat" and was accompanied by an illustration. The classification of the genus Potorous has seen the name subjected to frequent revisions. The following is a summary of the associated species and subspecies, genus Potorous P. gilbertii Gilbert's potoroo, P. longipes Long-footed potoroo, P. platyops Broad-faced potoroo, † modern extinction P. tridactylus Long-nosed potoroo, Potorous tridactylus tridactylus Potorous tridactylus apicalis Habitat and distribution The long-nosed potoroo is found in a variety of microhabitats located in the Southern Highlands of New South Wales and South-Western Victoria on the Australian mainland, and in Tasmania. Its bones have been found in a number of cave deposits, indicating it was once more widespread than it is today. This species prefers a range of vegetation types, from subtropical and warm temperate rainforest, through tall open forest with dense understorey, to dense coastal heaths. Its main requirement is thick groundcover, which it needs for protection and nesting material. It also prefers light