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 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]

PLATE 44.

Legion SPUMELLARIA.

Order DISCOIDEA.

Family Porodiscida.

PLATE 44. Porodiscida. Diam. Page. Fig. 1. Stephanastrum capitatum, n. sp., × 200 [549] Fig. 2. Pentinastrum asteriscus, n. sp., × 300 [557] Fig. 3. Pentalastrum ophidiaster, n. sp., × 100 [557] Fig. 4. Hexinastrum geryonidum, n. sp., × 300 [560] Fig. 5. Hexalastrum orchidaceum, n. sp., × 50 [560] Fig. 6. Amphibrachium dilatatum, n. sp., × 50 [517] Fig. 7. Amphymenium zygartus, n. sp., × 400 [520] Fig. 8. Amphymenium pupula, n. sp., × 300 [519] Fig. 9. Amphymenium amphistylium, n. sp., × 200 [520] Fig. 10. Amphicraspedum murrayanum, n. sp., × 300 [523] Fig. 11. Amphymenium monstrosum, n. sp., × 300 [520]

PLATE 44.
Porodiscida.
Diam.			Page.
Fig. 1. Stephanastrum capitatum, n. sp.,	×	200	[549]
Fig. 2. Pentinastrum asteriscus, n. sp.,	×	300	[557]
Fig. 3. Pentalastrum ophidiaster, n. sp.,	×	100	[557]
Fig. 4. Hexinastrum geryonidum, n. sp.,	×	300	[560]
Fig. 5. Hexalastrum orchidaceum, n. sp.,	×	50	[560]
Fig. 6. Amphibrachium dilatatum, n. sp.,	×	50	[517]
Fig. 7. Amphymenium zygartus, n. sp.,	×	400	[520]
Fig. 8. Amphymenium pupula, n. sp.,	×	300	[519]
Fig. 9. Amphymenium amphistylium, n. sp.,	×	200	[520]
Fig. 10. Amphicraspedum murrayanum, n. sp.,	×	300	[523]
Fig. 11. Amphymenium monstrosum, n. sp.,	×	300	[520]

PLATE 45.