“…In rat olfactory bulb, for example, immunoreactivity for non-phosphorylated neurofi lament protein labels mitral cells and tufted cells [Paxinos et al, 1999]. In several eutherian species, immunohistochemistry to the three calcium binding proteins identifi es a variety of neuron types [Briñón et al, 1992[Briñón et al, , 1997[Briñón et al, , 1999[Briñón et al, , 2001Kosaka et al, 1994;Toida et al, 1996;Alonso et al, 2001;Crespo et al, 2001;Jia and Halpern, 2004]. Immunoreactivity for tyrosine hydroxylase is intense within periglomerular cells of many eutherian species [Baker, 1986a,b;Smith et al, 1991;Brunjes et al, 1992], whereas NADPH diaphorase reactive cells have been found in superfi cial and deep short axon cells of some eutherian [Scott et al, 1987].…”