  We present optical continuum lags for two Seyfert 1 galaxies, MCG+08-11-011
and NGC 2617, using monitoring data from a reverberation mapping campaign
carried out in 2014. Our light curves span the ugriz filters over four months,
with median cadences of 1.0 and 0.6 days for MCG+08-11-011 and NGC\,2617,
respectively, combined with roughly daily X-ray and near-UV data from Swift for
NGC 2617. We find lags consistent with geometrically thin accretion-disk models
that predict a lag-wavelength relation of $\tau \propto \lambda^{4/3}$.
However, the observed lags are larger than predictions based on standard
thin-disk theory by factors of 3.3 for MCG+08-11-011 and 2.3 for NGC\,2617.
These differences can be explained if the mass accretion rates are larger than
inferred from the optical luminosity by a factor of 4.3 in MCG+08-11-011 and a
factor of 1.3 in NGC\,2617, although uncertainty in the SMBH masses determines
the significance of this result. While the X-ray variability in NGC\,2617
precedes the UV/optical variability, the long 2.6 day lag is problematic for
coronal reprocessing models.
