FIG. 20 in New Cenozoic Muricidae (Mollusca: Gastropoda) from Europe

FIG. 20. — Spiral cords and internal denticles of the outer lip in Flexopteron constantinense n. sp. (A-D) and F. liancurtense n. sp. (E-H): A, B, paratype: MNHN.F. A77761 (MNHN coll.), Carentan-les-Marais (Cauvin), Manche, France, late Eocene (Priabonian);C, D, holotype: MNHN.F.A77760 (MNHN coll.), Carentan-les-Marais (Cauvin);E, F, holotype: MNHN.F.J02578 (Cossmann coll.), Liancourt-Saint-Pierre,Oise Paris Basin,France, early Eocene (Ypresian); G, H, paratype: MNHN.F.A77758 (Merle coll.), Liancourt-Saint-Pierre. Scale bars: A, B, E-H, 3 mm; C, D, 5 mm. Credits: P. Loubry (MNHN/CNRS).