Peregrinella (Peregrinella) multicarinata (Lamarck, 1819) from Curnier, Drôme, south-eastern France Basin, Hauterivian, Early Cretaceous (Rey-Jouvin coll.). A, B. Dorsal and anterior views of MNHN.F.A97862 with coarse costae and septum visible on a worn surface. C–E. Lateral, dorsal and ventral views of the relatively gibbous MNHN.F.A97869 specimen with marks of predation on both valves. F–H. Anterior, dorsal and lateral views of an equibiconvex specimen with relatively thin costae MNHN.F.A97865. I–L. Dorsal, ventral, lateral and anterior views of MNHN.F.A97864 with remaining parts of calcite shell and coarse costae. M–P. Anterior, dorsal, close up on major growth lines near the antero-lateral margin and lateral views of MNHN.F.A97863. Q. Large isolated ventral valve with coarse costae (MNHN.F.A97893). R. Transverse section trough a large specimen revealing the septum and beginning of crura (MNHN.F.A98232). Black arrows: septum. Red arrows: predation marks. Yellow arrows: growth lines. Scale bars: 1 cm.