Sérsic index histograms for single Sérsic fit values (top panels) and for the spheroid component (bottom panels) in the B+D decomposition, both for the H (left panels) and the I band (right panels). The dashed gray line represents the division line between disk-dominated (n <  2.5) and spheroid-dominated (n >  2.5) objects. Our sample contains nine visually classified LTGs, yet single Sérsic fits in the H band yield only three galaxies being classifiable as disk-like on the basis of n. Bottom panels: histograms showing that the majority of our sample contains a spheroidal component with a low Sérsic index (n_spheroid <  3) in both bands, pointing to bulges of moderate light concentration.