Choose the description that best fits the animal of interest.  If none 
fit go back to question 12.

13a.  tan or brown above, may have round yellow spots, tail with
prominent keel, mouth not slightly crinkled

                 Desmognathus fuscus (Dusky Salamander)

13b.  gray, brown, olive, yellow or orange, may have stripe down back
marked with V shapes, tail rounded, not keeled, mouth slightly crinkled

                 Desmognathus ochrophaeus (Mountain Dusky Salamander)