Gibson, R.; Crandall, F. B. (1991). Amphiporus Ehrenberg, 1831 (Nemertea): proposed designation of Planaria lactiflorea Johnston, 1828 as the type species. The Bulletin of Zoological Nomenclature. 48: 22-24.
The purpose of this application is the designation of Planaria lactiflorea Johnston, 1828 as the type species of the widely used nemertean genus Amphiporus Ehrenberg, 1831. The original type species by monotypy, Polystemma albicans Ehrenberg, 1828, has not been redescribed since 1831 and its status is doubtful, but A. lactifloreus (Johnston) is well characterized and is typical of Amphiporus as understood.