Macrotis is a genus of desert-dwelling marsupial omnivores known as bilbies or rabbit-bandicoots; they are members of the order Peramelemorphia. At the time of European colonisation of Australia, there were two species. The lesser bilby became extinct in the 1950s; the greater bilby survives but remains endangered. It is currently listed as a vulnerable species. It is on average 55 cm (22 in) long, excluding the tail, which is usually around 29 cm (11 in) long. Its fur is usually grey or white, it has a long pointy nose and very long ears, hence earning its nick-name, the rabbit-eared bandicoot.