English: FIG. S2. Morphology and decollation structures of Cupitheca decollata sp. nov.

A, NIGPAS-HC-018, larval shell with a circle of penetrating channels, detail of box shown in G. G, enlargement of the penetrating channels, secondarily eroded as a groove. B, NIGPAS-HC-019, tubular shell with a belt-like structure, box indicates the position of H. H, detail of the belt-like structure along the circle of penetrating channels. C, NIGPAS-HC-020, aperturally broken shell with a ring, detail of box shown in I. I, enlargement of the ring. D, E, NIGPAS-HC-021, 022, tubular shells with rings and micropillar structures, boxes indicate the positions of J and L, respectively. J, enlargement of the ring and poorly developed micropillars, detail of box shown in K. L, enlargement of the ring and the micropillar structure, detail of the micropillar structure shown in M. F, NIGPAS-HC-023, apically broken shell with a ring and micropillar structure, detail of box shown in N. N, enlargement of the deformed ring and micropillar structure, detail of box shown in O. K, M, O, vertical micropillars. Scale bars represent: 100 μm (A); 200 μm (B-F); 10 μm (G, K, M); 60 μm (H, L); 50 μm (I); 20 μm (J); 40 μm (N); 12 μm (O).

figure S2-166.tif