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

Order DISCOIDEA.

Family Porodiscida.

PLATE 42. Porodiscida. Diam. Page. Fig. 1. Staurodictya elegans, n. sp., × 500 [507] Fig. 2. Staurodictya ciliata, n. sp., × 400 [506] Fig. 3. Staurodictya medusa, n. sp., × 400 [506] Fig. 4. Staurodictya cruciata, n. sp., × 300 [507] Fig. 5. Staurodictya cruciata, n. sp., × 300 [507] Vertical section through the disk. Fig. 6. Staurodictya grandis, n. sp., × 300 [508] Vertical section through the disk. Fig. 7. Tripodictya triacantha, n. sp., × 400 [505] Fig. 8. Tripodictya trigonaria, n. sp., × 400 [505] Fig. 9. Tripodictya tribelonia, n. sp., × 400 [505] Vertical section through the disk. Fig. 10. Xiphodictya amphibelonia, n. sp., × 300 [503] Marginal view. Fig. 11. Xiphodictya amphirrhopalia, n. sp., × 400 [504] Fig. 12. Xiphodictya staurospira, n. sp., × 500 [504]

PLATE 42.
Porodiscida.
Diam.			Page.
Fig. 1. Staurodictya elegans, n. sp.,	×	500	[507]
Fig. 2. Staurodictya ciliata, n. sp.,	×	400	[506]
Fig. 3. Staurodictya medusa, n. sp.,	×	400	[506]
Fig. 4. Staurodictya cruciata, n. sp.,	×	300	[507]
Fig. 5. Staurodictya cruciata, n. sp.,	×	300	[507]
Vertical section through the disk.
Fig. 6. Staurodictya grandis, n. sp.,	×	300	[508]
Vertical section through the disk.
Fig. 7. Tripodictya triacantha, n. sp.,	×	400	[505]
Fig. 8. Tripodictya trigonaria, n. sp.,	×	400	[505]
Fig. 9. Tripodictya tribelonia, n. sp.,	×	400	[505]
Vertical section through the disk.
Fig. 10. Xiphodictya amphibelonia, n. sp.,	×	300	[503]
Marginal view.
Fig. 11. Xiphodictya amphirrhopalia, n. sp.,	×	400	[504]
Fig. 12. Xiphodictya staurospira, n. sp.,	×	500	[504]

PLATE 43.

Legion SPUMELLARIA.

Order DISCOIDEA.

Family Porodiscida.

PLATE 43. Porodiscida. Diam. Page. Fig. 1. Rhopalastrum malleus, n. sp., × 100 [527] Fig. 2. Rhopalastrum ypsilinum, n. sp., × 50 [528] Fig. 3. Rhopalastrum hexaceros, n. sp., × 100 [529] Fig. 4. Rhopalastrum triceros, n. sp., × 50 [529] Fig. 5. Rhopalastrum trispinosum, n. sp. (vel Dictyastrum trispinosum), × 150 [525] Fig. 6. Rhopalastrum arcticum, n. sp., × 300 [539] Fig. 7. Rhopalastrum hexagonum, n. sp. (vel Dictyastrum hexagonum), × 100 [525] Fig. 8. Rhopalastrum irregulare, n. sp., × 100 [528] Fig. 9. Euchitonia lanceolata, n. sp., × 80 [534] Fig. 10. Euchitonia carcinus, n. sp., × 300 [535] Fig. 11. Euchitonia echinata, n. sp., × 120 [536] Fig. 12. Euchitonia stohrii, n. sp., × 100 [534] Fig. 13. Hymeniastrum euclidis, n. sp., × 200 [531] Fig. 14. Chitonastrum jugatum, n. sp., × 200 [537] Fig. 15. Chitonastrum lyra, n. sp., × 500 [538] A living specimen observed. The entire shell is enveloped by the calymma and surrounded by radiating pseudopodia (drawn much too short). Between the two paired arms arises a large "sarcode-flagellum." The central chamber and the first enveloping ring are filled by the clear nucleus; the other rings and all the chambers of the arms contain numerous pink oil-globules. Fig. 16. Trigonastrum regulare, n. sp. (vel Chitonastrum regulare), × 200 [539]