The Australian ghost shrimp, marine yabby, or ghost nipper (Trypaea australiensis) is a species of ghost shrimp in the family Callianassidae, found in Australia and the Indo-West Pacific region.

They are bio-irrigators and bioturbators in estuarine sediments, and are widely harvested by recreational anglers as fishing bait.

Further reading

  • Nizinski, Martha S. (2003). (PDF). Proceedings of the Biological Society of Washington. 116 (1): 96–157. ISSN .