Groups of goldfish with forebrain ablation and the olfactory tract sectioned were taught a food-motivated nondiscriminative choice in a Y-maze. Criterion choice behavior was followed by successive reversal learning. Both groups successfully acquired each task but the fish with forebrain ablation were slower to eliminate errors in the reversals than were the fish with the olfactory tract sectioned. There were no latency differences between groups on any tasks. It was concluded that the teleost forebrain may, in part, function to provide inhibitory control over previously acquired responses.