A Revision of the Genus <i>Fasciola</i>. With particular reference to <i>F. gigantica</i> (Cobbold) and <i>F. nyanzi</i> (Leiper)

Abstract

1. The specimens in the material here dealt with make a series of forms connecting F. angusta (Railliet) and F. aegyptiaca (Looss). 2. No important character separates any of these flukes from F. gigantica (Cobbold) and they must accordingly be all identified with this species. 3. The following key represents the simplest method of distinguishing between the species of Fasciola at present described. (For detailed diagnoses see the literature referred to below and this paper.)