Unlike the related noncyclic amidines which are broad-spectrum cestocides, a number of 2- imidazolines substituted in the 2 position by alkoxyaryl groups were not highly active in screening tests against the mouse tapeworms Hymenolepis nana and Oochoristica symmetrica. Certain of the 2-(4-alkoxynaphthyl)-2-imidazolines and 2-(6-alkoxy-2-naphthyl)- 2-imidzolines, however, had activity interpreted as antidepressant in the mouse. This ...