English: Illustration from Report on the Radiolaria collected by Challenger during the years 1873-1876. Part III. Original description follows: Plate 33. Phacodiscida. Diam. Fig. 1. Sethodiscus lenticula, n. sp., × 300 Fig. 2. Sethodiscus lenticula, n. sp., × 300 Vertical section. Fig. 3. Sethodiscus macrococcus, n. sp., × 300 Young shell, not yet closed, seen from the margin. Fig. 4. Periphæna cincta, n. sp., × 400 Fig. 5. Triactiscus tricuspis, n. sp., × 300 Marginal view. Fig. 6. Triactiscus tripyramis, n. sp., × 400 Fig. 7. Heliodiscus cingillum, n. sp., × 300 Fig. 8. H
English: Illustration from Report on the Radiolaria collected by Challenger during the years 1873-1876. Part III. Original description follows: Plate 33. Phacodiscida. Diam. Fig. 1. Sethodiscus lenticula, n. sp., × 300 Fig. 2. Sethodiscus lenticula, n. sp., × 300 Vertical section. Fig. 3. Sethodiscus macrococcus, n. sp., × 300 Young shell, not yet closed, seen from the margin. Fig. 4. Periphæna cincta, n. sp., × 400 Fig. 5. Triactiscus tricuspis, n. sp., × 300 Marginal view. Fig. 6. Triactiscus tripyramis, n. sp., × 400 Fig. 7. Heliodiscus cingillum, n. sp., × 300 Fig. 8. Heliodiscus asteriscus, n. sp., × 300 Fig. 9. Heliodrymus dendrocyclus, n. sp.(vel Heliocladus dendrocyclus), × 300 . 1887 65 Radiolaria (Challenger) Plate 033
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