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A consecutive more caudal transverse section of the archerfish diencephalon (A) immunostained for tyrosine hydroxylase (TH) with accompanying nuclear (DAPI) counterstain showing pretectal (PPd/PPv), posterior tubercular (TPp, PVO) and hypothalamic (Hd) dopamine cells. Arabic numerals in brackets indicate the relative distance of sections. Scale bar in (A): 0.1 mm. See abbreviation list and text for details.
