Hidden symmetry of the CKM and neutrino-mapping matrices

We make a parallel proposal for the lepton sectors. With the hidden symmetry and in the approximation of T invariance, both the masses of e and ν1 are zero. The neutrino-mapping matrix Vν is shown to be of the same Harrison-Perkins-Scott form which is in agreement with experiments. We also examine the correction due to T violation, and evaluate the corresponding Jarlskog invariant Jν.