original description(ofParadendrocoelum alexandrinae (Codreanu & Balcesco, 1967))Codreanu, R.; Balcesco, D. (1967). On two new hypogeous Dendrocoelids from Rumania and some effects of neoteny. <em>Arch Roum Pathol Exp Microbiol.</em> 26(4):843-852; [article in French].[details]