Fig. 4 in Intertidal chitons (Mollusca: Polyplacophora) from southern Madagascar

Fig. 4. (A, B) Ischnochiton sirenkoi sp. n., Lavanono, Madagascar: (A) holotype MZB 45693, 12.2 ×6.1 mm; (B) a lot of specimens showing colour variations, length, from left to right, respectively 17.7, 11.3, 11.2, 12, 10 and 9.5 mm; (C) Ischnochiton sansibarensis Thiele, 1909, holotype ZMB 102069, Zanzibar, ca 4 mm; (D–F) Callistochiton ashbyi (Barnard, 1963): (D) Lavanono, Madagascar, specimen n. 2 (Table 1), 23.3 mm; (E, F) holotype SAMC-A9337, an intermediate valve from Cape Infanta, South Africa, dorsal and ventral views, 9×3.3 mm; (G) Callistochiton madagassicus Thiele, 1909, holotype MNHN, Madagascar, 21×14 mm (from original description), some detached valves at left; (H) Chaetopleura chelazziana Ferreira, 1983, Lavanono, Madagascar, 47×31 mm; (I–X) Cryptoplax dupuisi Ashby, 1931, Lavanono, Madagascar: (I–K) specimens with the girdle deprived of dorsal spicules on the first four valves; (I, J) adult specimen, 51×12.5 mm; (K) the smaller specimen, 28.5×4 mm; (L) specimen with the girdle completely covered of dorsal spicules, 44×10 mm; (M, N) detail of sculpture of valves i–ii, in situ; (O, P) tail valve, lateral and ventral views, length 6.8 mm; (Q–X) valves i–viii (same scale), width (plates, without apophyses), from left to right, 4.4 mm (i), 3.9 mm (ii), 1.45 mm (iii), 2.65 mm (iv), 1.45 mm (v), 1.45 mm (vi), 2.4 mm (vii), 2.75 mm (viii).