ID of crays are a tricky business and best left to experts. To properly ID good close up pics are needed of the back, claws and male reproductive organs. This gets a little tricky and usually takes two people. One to hold the cray and expose the male parts with a tooth pic, and one to take the picture.

I belong to a crayfish forum called bluecrayfish.com. One of the members is a true crayfish expert and armed with such pictures, can ID just about anything.