Original: Woodward 's Wallaroo ( Macropus bernardus ) , also known as the Black Wallaroo and Bernard 's Wallaroo , is a species of macropod restricted to a small , mountainous area in Arnhem Land , Northern Territory , between South Alligator River and Nabarlek .
Simplified: Woodward 's Wallaroo ( Macropus bernardus ) , also called the Black Wallaroo and Bernard 's Wallaroo , is the smallest of the wallaroos .