The Mimic Octopus (Thaumoctopus mimicus) has been known for some years for its ability to mimic flatfish, lionfish and seasnakes.  A recent discovery in Indonesia adds a whole new twist to this story.  The Black-marble Jawfish (Stalix cf. histrio) mimics the M

The Harlequin Jawfish, Stalix histrio, occurs in Australian waters. It is known from a few locations in northern Queensland.  A second species of Stalix, the Yellow Jawfish, S. flavida, occurs in north-western waters of Western Australia. More information on jawfishes.

Reference:
Hoese, D.F., Bray, D.J., Paxton, J.R. & G.R. Allen. 2006. Fishes. In Beesley, P.L. & A. Wells. (eds) Zoological Catalogue of Australia. Volume 35. ABRS & CSIRO Publishing: Australia. parts 1-3, pages 1-2178.