1a -- A Rostral margins without accessory spines;
B male gonopods ending in two terminal elements that are bent at
approximately 90 degrees to main shaft
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(Cambarus or Fallicambarus)
Go to 3
1b A Rostral margins with accessory spines, sometimes
reduced; B male gonopods approximately straight ending in two
terminal elements, or C stalk like ending in more than two
terminal elements; (carapace red and covered in tubercles likely genus
procambarus
--------------------------------------------------------------------- (Orconectes
or Procambarus) Go to 2
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Dr. Tom Jones