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 SPUMELLARIA.

Order SPHÆROIDEA.

Family Cubosphærida.

PLATE 25. Cubosphærida. Diam. Page. Fig. 1. Hexadoridium streptacanthum, n. sp., × 400 [206] Fig. 1a. The two concentric medullary shells. Fig. 2. Hexalonche amphisiphon, n. sp., × 300 [182] Fig. 2a. Medullary shell connected with a fragment of the cortical shell. Fig. 2b. Vertical section through the wall of the cortical shell. (Below the centre of the Plate, also lettered 3a by mistake.) Fig. 3. Hexalonche rosetta, n. sp., × 400 [180] Fig. 3a. Medullary shell. Fig. 3b. Vertical section through the wall of the cortical shell. Fig. 4. Hexalonche curvicornis, n. sp., × 300 [181] Outer shell not yet complete, or partly broken off (?). Fig. 5. Hexalonche anaximenis, n. sp., × 400 [183] Fig. 6. Hexalonche hystricina, n. sp., × 300 [187] Fig. 7. Hexacontium circumtextum, n. sp., × 400 [193] Fig. 7a. Vertical section through the double wall of the cortical shell. Fig. 8. Hexacontium gladiatum, n. sp., × 400 [198] A part of the two outer shells and of the radial spines is broken off.

PLATE 25.
Cubosphærida.
Diam.			Page.
Fig. 1. Hexadoridium streptacanthum, n. sp.,	×	400	[206]
Fig. 1a. The two concentric medullary shells.
Fig. 2. Hexalonche amphisiphon, n. sp.,	×	300	[182]
Fig. 2a. Medullary shell connected with a fragment of the cortical shell.
Fig. 2b. Vertical section through the wall of the cortical shell. (Below the centre of the Plate, also lettered 3a by mistake.)
Fig. 3. Hexalonche rosetta, n. sp.,	×	400	[180]
Fig. 3a. Medullary shell.
Fig. 3b. Vertical section through the wall of the cortical shell.
Fig. 4. Hexalonche curvicornis, n. sp.,	×	300	[181]
Outer shell not yet complete, or partly broken off (?).
Fig. 5. Hexalonche anaximenis, n. sp.,	×	400	[183]
Fig. 6. Hexalonche hystricina, n. sp.,	×	300	[187]
Fig. 7. Hexacontium circumtextum, n. sp.,	×	400	[193]
Fig. 7a. Vertical section through the double wall of the cortical shell.
Fig. 8. Hexacontium gladiatum, n. sp.,	×	400	[198]
A part of the two outer shells and of the radial spines is broken off.

PLATE 26.

Legion SPUMELLARIA.

Order SPHÆROIDEA.

Families Liosphærida et Astrosphærida.