Rybakov A V, Nezlin L P
Zh Obshch Biol. 1990 May-Jun;51(3):419-24.
Localization of catecholamines in the nervous system of 12 species of Trematodes parthenitae from marine mollusks has been studied using the method of glyoxilic acid-induced fluorescence. Unlike primitive species with orthogon-like distribution of catecholamines, specialized ones have diffuse nervous plexus, which can be reduced in most specialized forms.