Posted by cindy on July 05, 2002 at 23:26:59:
In Reply to: crawdads posted by Jenny on July 05, 2002 at 15:47:06:
I don't know how helpful these two sites will be for you, but this one:
http://www.tinarooeec.qld.edu.au/Kids/redclaw.html
has line drawings of the differnce, and the link below has photos of the difference, largely in the swimerettes on the ventral surface. HTH