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We study the implications of the flavour SU(3) symmetry for variousinterpretations of the neutron anomaly in the $\gamma N\to\eta N$ crosssection. We show that the explanation of the neutron anomaly due tointerference of known N(1535) and N(1650) resonances implies that N(1650)resonance should have a huge coupling to $\phi$-meson -- at least 5 timeslarger than the corresponding $\rho^0$ coupling. In terms of quark degrees offreedom this means that the well-known N(1650) resonance must be a"cryptoexotic pentaquark"-- its wave function should contain predominantly an$s\bar s$ component.  It turns out that the "conventional" interpretation of the neutron anomaly bythe interference of known resonances metamorphoses into unconventional physicspicture of N(1650).

The neutron anomaly in the gamma N --> eta N cross section through the looking glass of the flavour SU(3) symmetry