FIGURE 6 in Lateral arm plate morphology in brittle stars (Echinodermata: Ophiuroidea): new perspectives for ophiuroid micropalaeontology and classification

FIGURE 6. Lateral arm plates (LAPs) in external (a) and internal (b) views of one adult specimen of Ophiura sarsii from Toyama Bay, Japan, and three different growth stages of Ophiura sarsii from off Iceland. 1–2: proximal (1) and median (2) LAPs of adult specimen from Japan; 3–4: proximal (3) and median (4) LAPs of adult specimen from off Iceland, dd=12,5 mm; 5–6: proximal (5) and median (6) LAPs of juvenile specimen from off Iceland, dd=7,8 mm; 7–8: proximal (7) and median (8) LAPs of juvenile specimen from off Iceland, dd=2,5 mm. dd: disc diameter.