Radula, Wallaconchis buetschlii (A–D) Indonesia, Sulawesi [2120] (UMIZ 00021) (E) Australia, Queensland [2554] (MTQ st100) (F) Australia, Queensland [2555] (MTQ st100). A Rachidian and innermost lateral teeth, scale bar 10 μm B Rachidian and innermost lateral teeth, scale bar 40 μm C Inner lateral teeth, scale bar 30 μm D Outermost lateral teeth, scale bar 20 μm E Outermost lateral teeth, scale bar 10 μm F Transition between inner lateral teeth and outer lateral teeth, with the basal lateral spine revealed on the underside of the inner lateral teeth at the bottom, scale bar 30 μm.