Enkephalin immunocytochemistry was combined with either glycine immunocytochemistry or autoradiography of high-affinity glycine uptake to examine for colocalization of enkephalin and glycine in amacrine cells of the larval tiger salamander retina. A total of 995 enkephalin-immunoreactive amacrine cells were visualized in double-label preparations. None of the enkephalin-labelled cells was observed to co-label for markers of glycinergic activity.