ENERGY-LEVEL INEQUALITIES IN A WRINKLED QUARKONIUM POTENTIAL

''concave'' downward property of the standard static <q(q)over bar> po tentials leads to the energy level inequalities E(n+2) - E(n+1) < E(n1) - E(n) in the quarkonium mass spectrum. However, this inequality is experimentally observed to be reversed for n = 2 in charmonium and n = 3 in bottomonium, a fact that is inexplicable in terms of any known concave downward potential. We attempt to explain this by allowing for the violation of the concavity condition in a small interval, i.e., a ''wrinkle'' in some recently proposed quarkonium potentials.