A name for the freshwater crayfish found in swamps, streams, practically dried-up water-holes, and rivers. It prefers moving water but will put up with anything, being a tenacious beast which can even survive drought by burrowing into the ground. In the US this is likely to be the American Signal crayfish and in Australia the yabby, which is a general name covering all the freshwater crayfish except the marron and the redclaw.
