 \ell_{\mu\nu}-h_{\mu\nu} %+4Jg \rho^{-1}K^{1/2}  \tilde \Theta_{\mu\nu} = \partial_\mu \zeta_\nu- \partial_\nu \zeta_\mu ,\quad i.e, \quad  \ell_{\mu\nu} = h_{\mu\nu}^{\zeta} . \dolphin \squirrel\stingray