1 Introduction: neuroanatomy for a neurogenetic model system.- Differentiation of first neurons and their associated tracts and commissures in the embryonic zebrafish brain.- Neuromeres and expression of regulatory genes in the embryonic zebrafish.- Generation of zebrafish mutants via saturation mutagenesis.- 2 Taxonomic background.- 3 Technical details.- Histology.- Preparation of figures.- 4 The brain of the zebrafish Danio rerio: an overview.- Telencephalon.- Olfactory bulbs.- Area ventralis telencephali.- Area dorsalis telencephali.- Telencephalic tracts and commissures.- Diencephalon (including synencephalon and pretectum).- Area praeoptica.- Epithalamus.- Dorsal thalamus.- Ventral thalamus.- Posterior tuberculum.- Hypothalamus.- Synencephalon.- Pretectum.- Diencephalic tracts and commissures.- Mesencephalon.- Tectum opticum.- Torus semicircularis.- Tegmentum.- Rhombencephalon (metencephalon and myelencephalon).- Cerebellum.- Medulla oblongata.- Primary sensory and motor nuclei.- Reticular formation.- Additional medullary nuclei.- Medulla spinalis.- Brain stem/spinal tracts and commissures.- 5 The brain of the zebrafish Danio rerio: a neuroanatomical atlas.- External view.- Cross sections.- Sagittal sections.- Horizontal sections.- 6 Functional anatomy of the zebrafish brain: a comparative evaluation.- Sensory Systems in the teleostean CNS.- Olfaction.- Vision.- Mechanoreception.- Audition.- Vestibular sense.- Gustation.- General visceral sense.- Somatosensory system.- Motor and premotor systems in the teleostean CNS.- Motor nuclei of cranial nerves.- Descending spinal projections.- Reticular formation.- Integrative centers in the teleostean CNS.- Cerebellum.- Tectum opticum.- Telencephalon.- 7 Index of Latin terms.- 8 Index of English terms.- 9 Index of abbreviations.- 10 References.