Low (a, c, and e) and higher (b, d, and f) magnification photomicrographs of coronal sections through the lateral stripe of the striatum (LSS), part of the ventral striatopallidal complex, of the tree pangolin brain immunostained for neuronal nuclear marker (NeuN; a and b), choline acetyltransferase (ChAT; c and d) and calbindin (e and f). The LSS is found in the white matter lateral to the putamen (P) and nucleus accumbens (Acb) and medial to the endopeduncular nucleus (En). A small number of cholinergic neurons and dense cholinergic bouton densities are observed in the LSS (d), as well as two different sized calbindin immunopositive neurons (f). In all photomicrographs, medial is to the left and dorsal to the top. Scale bar in (e) = 500 μm and applies to (a), (c), and (e). Scale bar in (f) = 20 μm and applies to (b), (d), and (f). See list for abbreviations