petrogale

from The Century Dictionary.

• noun A genus of marsupials of the family Macro-podidtæ, founded by J. E. Gray in l837; the rock-kangaroos.
• noun [lowercase] An animal of this genus.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) Any Australian kangaroo of the genus Petrogale, as the rock wallaby (Petrogale penicillata).

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun rock wallabies