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 81.

Legion NASSELLARIA.

Order STEPHOIDEA.

Family Stephanida.

PLATE 81. Stephanida. Diam. Page. Fig. 1. Archicircus primordialis, n. sp., × 200 [942] Fig. 2. Zygocircus polygonus, n. sp., × 200 [947] Fig. 3. Zygocircus triquetrus, n. sp., × 300 [947] Fig. 4. Archicircus hexacanthus, n. sp., × 300 [942] Fig. 5. Zygocircus acacia, n. sp., × 300 [947] Fig. 6. Lithocircus crambessa, n. sp., × 400 [944] Fig. 7. Archicircus rhombus, n. sp., × 300 [942] Fig. 8. Zygocircus pentagonus, n. sp., × 300 [946] Fig. 9. Lithocircus quadricornis, n. sp., × 300 [944] Fig. 10. Dendrocircus arborescens, n. sp., × 300 [949] Fig. 11. Dendrocircus dodecancistra, n. sp., × 300 [949] Fig. 12. Archicircus sexangularis, n. sp., × 300 [943] Fig. 13. Dendrocircus elegans, n. sp., × 400 [949] Fig. 14. Dendrocircus stalactites, n. sp., × 400 [950] Fig. 15. Lithocircus decimalis, n. sp., × 300 [944] Fig. 16. Lithocircus magnificus, n. sp., × 400 [945] The ovate, red-coloured central capsule exhibits in the lower half the striate podoconus, in the upper half four oil-globules, and at the left the kidney-shaped nucleus. Numerous "yellow cells" or xanthellæ are scattered in the calymma, which contains brown pigment around the porochora. Numerous pseudopodia radiate from the supporting spines of the sagittal ring. Fig. 17. Lithocircus hexablastus, n. sp., × 400 [944]

PLATE 81.
Stephanida.
Diam.			Page.
Fig. 1. Archicircus primordialis, n. sp.,	×	200	[942]
Fig. 2. Zygocircus polygonus, n. sp.,	×	200	[947]
Fig. 3. Zygocircus triquetrus, n. sp.,	×	300	[947]
Fig. 4. Archicircus hexacanthus, n. sp.,	×	300	[942]
Fig. 5. Zygocircus acacia, n. sp.,	×	300	[947]
Fig. 6. Lithocircus crambessa, n. sp.,	×	400	[944]
Fig. 7. Archicircus rhombus, n. sp.,	×	300	[942]
Fig. 8. Zygocircus pentagonus, n. sp.,	×	300	[946]
Fig. 9. Lithocircus quadricornis, n. sp.,	×	300	[944]
Fig. 10. Dendrocircus arborescens, n. sp.,	×	300	[949]
Fig. 11. Dendrocircus dodecancistra, n. sp.,	×	300	[949]
Fig. 12. Archicircus sexangularis, n. sp.,	×	300	[943]
Fig. 13. Dendrocircus elegans, n. sp.,	×	400	[949]
Fig. 14. Dendrocircus stalactites, n. sp.,	×	400	[950]
Fig. 15. Lithocircus decimalis, n. sp.,	×	300	[944]
Fig. 16. Lithocircus magnificus, n. sp.,	×	400	[945]
The ovate, red-coloured central capsule exhibits in the lower half the striate podoconus, in the upper half four oil-globules, and at the left the kidney-shaped nucleus. Numerous "yellow cells" or xanthellæ are scattered in the calymma, which contains brown pigment around the porochora. Numerous pseudopodia radiate from the supporting spines of the sagittal ring.
Fig. 17. Lithocircus hexablastus, n. sp.,	×	400	[944]

PLATE 82.

Legion NASSELLARIA.