Digestive system: (14) Dorso-lateral view of the radula, arrows points to central tooth in two transverse rows of teeth; (15) detail on a dorso-lateral view of the lateral teeth;(16) detail of lateral teeth close to margin in dorsal view (17) margin of the radula showing curve shaped marginal teeth; (18) dorsal view of the smooth, fragile jaw; (19) detail of the dorsal surface of the jaw showing transversal shallow grooves. Scale bars = 10 μm.