Figure 3. Ophioscolex purpureus postlarval development. A–C, 0.6 in Who's who among baby brittle stars (Echinodermata: Ophiuroidea): postmetamorphic development of some North Atlantic forms

Figure 3. Ophioscolex purpureus postlarval development. A–C, 0.6 mm dd postlarva; A, dorsal; B, arm dorsal; C, ventral; D, E, 0.9 mm dd postlarva; D, dorsal; E, ventral, note the leaf-shaped adoral shield spine; F, 1.5 mm dd postlarva dorsal; G, same ventral; H, 1.8 mm dd postlarva ventral; I, same dorsal. Abbreviations: CPP, central primary plate; DAP, dorsal arm plate; others as in Figs 1, 2. Scale bars in millimetres.