Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Plates / Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII

by Ernst Haeckel

PLATE 31.

Legion SPUMELLARIA.

Order DISCOIDEA.

Families Cenodiscida et Phacodiscida.

PLATE 31. Cenodiscida et Phacodiscida. Diam. Page. Fig. 1. Sethostaurus orthostaurus, n. sp., × 300 [433] Fig. 2. Sethostaurus orthostaurus, n. sp., × 300 [433] Vertical section through the centrum. Fig. 3. Sethostaurus recurvatus, n. sp., × 100 [434] Optical section through the equatorial plane. Fig. 4. Sethostaurus rhombostaurus, n. sp., × 100 [434] Optical section through the equatorial plane. Fig. 5. Sethostaurus cruciatus, n. sp. (vel Heliostaurus cruciatus), × 300 [434] Fig. 6. Phacostaurus oceanidum, n. sp., × 300 [435] Fig. 7. Phacostaurus magnificus, n. sp., × 400 [436] Fig. 8. Phacostaurus magnificus, n. sp., × 200 [436] Vertical section through the centrum. Fig. 9. Sethostylus distyliscus, n. sp., × 400 [428] Fig. 10. Sethostylus dicylindrus, n. sp., × 300 [428] Marginal view. Fig. 11. Stylodiscus endostylus, n. sp. (vel Sethostylus endostylus), × 300 [413] Fig. 12. Phacostylus amphistylus, n. sp., × 300 [430]

PLATE 31.
Cenodiscida et Phacodiscida.
Diam.			Page.
Fig. 1. Sethostaurus orthostaurus, n. sp.,	×	300	[433]
Fig. 2. Sethostaurus orthostaurus, n. sp.,	×	300	[433]
Vertical section through the centrum.
Fig. 3. Sethostaurus recurvatus, n. sp.,	×	100	[434]
Optical section through the equatorial plane.
Fig. 4. Sethostaurus rhombostaurus, n. sp.,	×	100	[434]
Optical section through the equatorial plane.
Fig. 5. Sethostaurus cruciatus, n. sp. (vel Heliostaurus cruciatus),	×	300	[434]
Fig. 6. Phacostaurus oceanidum, n. sp.,	×	300	[435]
Fig. 7. Phacostaurus magnificus, n. sp.,	×	400	[436]
Fig. 8. Phacostaurus magnificus, n. sp.,	×	200	[436]
Vertical section through the centrum.
Fig. 9. Sethostylus distyliscus, n. sp.,	×	400	[428]
Fig. 10. Sethostylus dicylindrus, n. sp.,	×	300	[428]
Marginal view.
Fig. 11. Stylodiscus endostylus, n. sp. (vel Sethostylus endostylus),	×	300	[413]
Fig. 12. Phacostylus amphistylus, n. sp.,	×	300	[430]

PLATE 32.

Legion SPUMELLARIA.