It is difficult to ID it to genus or species from just the underside view. What really needs to be done is have a close look at the gonopods (1st pleopods) between the last set of legs. I can tell you that crayfish is a male and "probably" of the genus Cambarus or Procambarus based on the shape of the claws. They are good burrowers and often build mud chimneys on the pond banks. It won't hurt being in your pond. The bass will keep them from becoming overabundant even if there is cover-structure available.
Last edited by Bill Cody; 07/27/12 11:44 AM.
