Die skedelmorfologie van die neotropiese anure Atelopus moreirae de Mirando-Ribeiro / Cornelia E. Badenhorst Contributions to the cranial morphology of the West African ranid Schoutedenella muta Witte / J.D. Maas Contributions to the cranial morphology of the European anuran Alytes obstetricans (Laurenti) / W.A. Maree Contributions to the cranial morphology of the European anuran Bombina variegata (Linne) / G.K. Slabbert The cranial morphology of the Discoglossidae and its bearing upon the phylogeny of the primitive Anura / G.K. Slabbert and W.A. Maree