Hello James,
        Didn't you ask a question about Chitons just a few days ago?  I e-mailed what
Chitons we have found in Panama City to Port St Joe area.  I'll list those
again and believe that you should be able to find some of these in your area.
 
        Ischnochiton papillosus, Ischnochiton hartmeyeri, Ischnochiton niveus,
Lepidochitona liozonis, Chaetopleura apiculata, Acanthochitona pygmaea.
 
        Happy Hunting!!!
 
Bob
Panama City