Trypaea australiensis

Trypaea australiensis
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Family: Callianassidae
Genus: Trypaea
Species:
T. australiensis
Binomial name
Trypaea australiensis
Dana, 1852

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.