Map of λ_R for NGC 4371. The isophotes shown are derived from the MUSE cube reconstructed intensities and are equally spaced in steps of about 0.5 mag. The right panel focusses on the inner 10′′. North is up, east is to the left. The nearly vertical dashed line indicates the position of the bar major axis. The horizontal elongated markings indicate the outer boundary of the region dominated by the inner disc, at ~20′′, as derived through the ellipse fits, and the position of the 10′′ ring.