FIGURE 2A–Q in Chitons (Mollusca, Polyplacophora) from the Maldive islands

FIGURE 2A–Q, Ischnochiton albinus Thiele, 1911, Maldive, M13. A–E, L–Q, living specimen. A–B, dorsal and lateral view (respectively) of a complete specimen. C, close-up of the head valve. D, lateral view of valves vii-viii. E, close-up of the tail valve. L, perinotum elements in situ. M, detail of the perinotum elements, showing the sphaerules along the distal margin in situ. N, hyponotum elements in situ. O, radula. P, an isolated blade of the second lateral tooth. Q, detail of the central teeth. F–K, intermediate valve. F, dorsal view. G, frontal view. H, ventral view. I, detail of the sculpture, showing the contact between the right lateral and central areas. J, lateral view of elongate granules of the lateral area. K, the same, by a dorsal view. Scale bars 1 mm: A, B; 500 µm: C–H; 100 µm: I; 50 µm: J, K, N, O; 10 µm: L, M, P, Q.