Plate P16. Transmitted light microphotographs of radiolarians from Holes 1218A, 1219A, and 1220A. Scale bar = 100 µm. 1, 2. Rhopalastrum sp. A.; (1) Sample 199-1218A-24X-5, 71–73 cm (Y28/1), (2) Sample 199-1220A-6H-4, 77–79 cm (M38/1). 3. Rhopalastrum sp. B (Sample 199-1220A-6H-7, 40–42 cm), O52/3. 4, 5. Rhopalastrum (?) sp. C; (4) Sample 199-1218A-22X-5, 30–32 cm (H17/4), (5) Sample 199-1220A-7H-5, 77

Plate P16. Transmitted light microphotographs of radiolarians from Holes 1218A, 1219A, and 1220A. Scale bar = 100 µm. 1, 2. Rhopalastrum sp. A.; (1) Sample 199-1218A-24X-5, 71–73 cm (Y28/1), (2) Sample 199-1220A-6H-4, 77–79 cm (M38/1). 3. Rhopalastrum sp. B (Sample 199-1220A-6H-7, 40–42 cm), O52/3. 4, 5. Rhopalastrum (?) sp. C; (4) Sample 199-1218A-22X-5, 30–32 cm (H17/4), (5) Sample 199-1220A-7H-5, 77–79 cm (N36/0).