FIG. 6. — Lamellibrachia anaximandri n. sp., adults: A, anterior end in lateral view, showing the sheath lamellae almost completely hiding the branchial lamellae and the obturaculum, holotype from Nautile dive MN12, Kazan mud volcano; B, ventral half of the plume and obturaculum of another specimen, cut longitudinally to show the depth of the funnel of a specimen from unlabelled MEDINAUT sample; C, part of a branchial filament with pinnules and two bands of cilia, specimen from Nautile dive MN8 Amsterdam mud volcano; D, E, anterior and posterior ends of vestimental region in ventral view, showing the vestimental folds and the two ends of the ciliated field of a specimen from Nautile dive MN8, Amsterdam mud volcano; F, dorsal surface of posterior vestimental region of large female, with vestimental folds spread outward, two arrows mark the gonopores, from Nautile dive MN5 Napoli mud volcano; G, chaetae, in face and side view, from an opisthosome with 43 chaetigers (sample MN10 BT1); H, I, vestimental and abdominal plaques, respectively. Scale bars: A, B, D-F, 1 mm; C, 0.1 mm; G, 10 μm; H, I, 100 μm.