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

Legion NASSELLARIA.

Order CYRTOIDEA.

Families Phænocalpida, Anthocyrtida et Sethocyrtida.

PLATE 55. Phænocalpida, Anthocyrtida et Sethocyrtida. Diam. Page. Fig. 1. Sethoconus facetus, n. sp. (vel Phlebarachnium facetum), × 300 [1296] Upper part of the shell. Fig. 2. Sethoconus venosus, n. sp. (vel Phlebarachnium venosum), × 250 [1297] Shell including the four-lobed central capsule. Fig. 3. Sethophormis aurelia, n. sp. (vel Leptarachnium aurelia), × 100 [1248] Shell seen from above. Fig. 4. Sethophormis aurelia, n. sp., × 400 [1248] Cephalis more enlarged, with the enclosed four-lobed central capsule. Fig. 5. Cladarachnium ramosum, n. sp., × 300 [1165] Apical view. Fig. 6. Cladarachnium ramosum, n. sp., × 70 [1165] Lateral view. Fig. 7. Bathropyramis interrupta, n. sp., × 300 [1160] Apical part of the shell, from above. Fig. 8. Litharachnium araneosum, n. sp., × 300 [1163] Apical part of the shell, from above. Fig. 9. Litharachnium epeira, n. sp., × 500 [1164] Oblique view of the shell. Fig. 10. Litharachnium araneosum, n. sp., × 50 [1163] Lateral view. Fig. 11. Periarachnium periplectum, n. sp., × 500 [1297] Shell enclosing the trilobed central capsule.

PLATE 55.
Phænocalpida, Anthocyrtida et Sethocyrtida.
Diam.			Page.
Fig. 1. Sethoconus facetus, n. sp. (vel Phlebarachnium facetum),	×	300	[1296]
Upper part of the shell.
Fig. 2. Sethoconus venosus, n. sp. (vel Phlebarachnium venosum),	×	250	[1297]
Shell including the four-lobed central capsule.
Fig. 3. Sethophormis aurelia, n. sp. (vel Leptarachnium aurelia),	×	100	[1248]
Shell seen from above.
Fig. 4. Sethophormis aurelia, n. sp.,	×	400	[1248]
Cephalis more enlarged, with the enclosed four-lobed central capsule.
Fig. 5. Cladarachnium ramosum, n. sp.,	×	300	[1165]
Apical view.
Fig. 6. Cladarachnium ramosum, n. sp.,	×	70	[1165]
Lateral view.
Fig. 7. Bathropyramis interrupta, n. sp.,	×	300	[1160]
Apical part of the shell, from above.
Fig. 8. Litharachnium araneosum, n. sp.,	×	300	[1163]
Apical part of the shell, from above.
Fig. 9. Litharachnium epeira, n. sp.,	×	500	[1164]
Oblique view of the shell.
Fig. 10. Litharachnium araneosum, n. sp.,	×	50	[1163]
Lateral view.
Fig. 11. Periarachnium periplectum, n. sp.,	×	500	[1297]
Shell enclosing the trilobed central capsule.

PLATE 56.

Legion NASSELLARIA.

Order CYRTOIDEA.

Families Tripocyrtida, Anthocyrtida et Sethocyrtida.