Prospective anterolateral neural fold was grafted from normal axolotls into the posterior neural fold region (statocyst area) ofeyelessmutant hosts. These unilateral anteroposterior grafts stimulated bilateral eye formation in theeyelessmutant at a rate of 79%. Replacing the statocyst area of mutants with the statocyst area from normals stimulated bilateral eye formation in 49% of the cases. Grafting of prospective anterolateral neural fold between normals and mutants or excising the statocyst region of mutants, had no effect. The results are interpreted on the basis of a hypothetical anteroposterior morphogenetic system that might be out of balance in the mutant.