Zebrafish eye development

Dorsal view of the head region in a zebrafish embryo which has been stained to show neuron development in the epiphysial region of the diencephalon, part of the developing forebrain. This is the region where neurons first develop in the forebrain. In this 'floating head' mutant, neurons which should be seen at this stage (see wildtype B0001159C) are missing from this area.