""CONTENTS""; ""Introduction""; ""The medaka as a model""; ""Aim of the present atlas""; ""Materials and methods""; ""Medaka strain used and histological procedures""; ""Preparation of the brain atlas, and guidelines for its use""; ""Nomenclature""; ""What nomenclature should be used for fish neuroanatomy?""; ""Language used in the present work""; ""Specific comments""; ""Bibliography""; ""List of abbreviations and location of the structures""; ""Sections""; ""Horizontal sections- figures 1 to 7""; ""Sagittal sections- figures 1 to 7""; ""Transverse sections- figures 1 to 55""