X(4260)
     

   No signal in ππJ/ψ where the ψ(4S) is expected,   
   Because ψ(4S)→Ds*Ds* depletes the ππJ/ψ signal.   

  data from BaBar, Phys. Rev. Lett. 95, 142001 (2005)
  arXiv:1004.4368 and arXiv:1005.1010