  We determine the masses and magnetic moments of the octet baryons in chiral
perturbation theory formulated for a mixed lattice action of Ginsparg-Wilson
valence quarks and staggered sea quarks. Taste-symmetry breaking does not occur
at next-to-leading order in the combined lattice-spacing and chiral expansion.
Expressions derived for masses and magnetic moments are required for addressing
lattice artifacts in mixed-action simulations of these observables.
