Plate P12. Transmitted light microphotographs of radiolarians from Holes 1218A, 1219A, and 1220A. Scale bar = 100 µm. 1–3. Eusyringium fistuligerum group; (1) Sample 199-1220A-8H-7, 28–30 cm (E34/0), (2) Sample 199-1220A-9H-2, 75–77 cm (M16/4), (3) Sample 199-1218A-25X-7, 75–77 cm (L51/1). 4. Lychnocanoma tripodium form A (Sample 199-1218A-25X-7, 75–77 cm), M24/2. 5. Lychnocanoma tripodium form B (Sample 199-1218A-25X-7, 75–77 cm), Q52/0. 6. Lychnocanoma tridentatum (Sample 199-1220A-9H-7, 25–27 cm), L52/0. 7. Lychnocanoma continuum (Sample 199-1218A-25X-5, 120–122 cm), D48/0. 8. Lychnocanoma amphitrite (Sample 199-1220A-8H-6, 25–27 cm), Q37/4. 9, 10. Lychnocanoma tripodium form C; (9) Sample 199-1220A-9H-6, 125–127 cm (B27/1), (10) Sample 199-1220A-9H-2, 125

Plate P12. Transmitted light microphotographs of radiolarians from Holes 1218A, 1219A, and 1220A. Scale bar = 100 µm. 1–3. Eusyringium fistuligerum group; (1) Sample 199-1220A-8H-7, 28–30 cm (E34/0), (2) Sample 199-1220A-9H-2, 75–77 cm (M16/4), (3) Sample 199-1218A-25X-7, 75–77 cm (L51/1). 4. Lychnocanoma tripodium form A (Sample 199-1218A-25X-7, 75–77 cm), M24/2. 5. Lychnocanoma tripodium form B (Sample 199-1218A-25X-7, 75–77 cm), Q52/0. 6. Lychnocanoma tridentatum (Sample 199-1220A-9H-7, 25–27 cm), L52/0. 7. Lychnocanoma continuum (Sample 199-1218A-25X-5, 120–122 cm), D48/0. 8. Lychnocanoma amphitrite (Sample 199-1220A-8H-6, 25–27 cm), Q37/4. 9, 10. Lychnocanoma tripodium form C; (9) Sample 199-1220A-9H-6, 125–127 cm (B27/1), (10) Sample 199-1220A-9H-2, 125–127 cm (O42/2).