- All the information re freshwater shrimp indicate they grow to no more than about 70mm. Many years ago I accidently foul hooked a crustacean while fishing in Lake Mulwala near Bundalong. This particular 'animal' had the body size of an average yabbie (shrimp shape) but long thin legs, proportionately similar to a shrimp, roughly 150 to 200mm long. I always assumed it was a large shrimp but I have caught hundreds since and none even remotely approach the size. The mere fact that it was caught on a baited fishing line and hook speaks for itself. Is there some known crustacean that lives in the Murray system that fits this description that I don't know about, was it possibly one of the last of an otherwise unknown species or has anyone else seen a 'shrimp' that fits this description.