in addition to the accessory optic tract and to a projection at the level of the preoptic area , the trout possesses a well-developed thalamic visual system composed of a ribboned geniculate nucleus and two medial thalamic visual centres fed by the retinothalamic pathways as well as a small retinal target located in the lateral thalamus .
C0017405
geniculate nucleus
C0039729
thalamus