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 3.
Collozoida.
Diam.			Page.
Fig. 1. Collozoum serpentinum, n sp (vel Collophidium serpentinum, Hkl),	×	10	[26]
A living cœnobium, with expanded pseudopodia. The spherical calymma (or the common jelly-mass of the colony) is alveolate and contains numerous cylindrical, serpentine, central capsules. Numerous yellow cells or xanthellæ are scattered between the radial pseudopodia in the periphery.
Fig. 2. Collozoum serpentinum, n. sp.,	×	50	[26]
An isolated, cylindrical, worm-shaped, central capsule, with an axial series of oil-globules; the red points are nuclei.
Fig. 3. Collozoum serpentinum, n. sp.,	×	150	[26]
An isolated, cylindrical, serpentine, central capsule. k, Oil-globules forming an axial series; n, densely placed, red-coloured nuclei;, c, the capsule membrane under which are scattered small black pigment spots in the colourless cortical zone of the endoplasm; a, extracapsular alveoles; x, xanthellæ or "yellow cells."
Fig. 4. Collozoum amœboides, n. sp.,	×	100	[28]
A spherical cœnobium or jelly-colony. Each amœboid central capsule contains an oil-globule; the small red points are nuclei.
Fig. 5. Collozoum amœboides, n. sp.,	×	400	[28]
c, A single isolated central capsule; n, nuclei; k, oil-globule.
Fig. 6. Collozoum vermiforme, n. sp.,	×	30	[27]
g, A spherical cœnobium or jelly-colony; a, large alveoles, forming a cortical zone; c, central capsules; k, oil-globules.
Fig. 7. Collozoum vermiforme, n. sp.,	×	100	[27]
c, A single isolated central capsule; x, xanthellæ surrounding this central capsule; k, oil-globules; n, nuclei.
Fig. 8. Collozoum ellipsoides, n. sp.,	×	2	[26]
A spherical colony; the red points are central capsules.
Fig. 9. Collozoum ellipsoides, n. sp.,	×	150	[26]
c, A single isolated central capsule; k, oil-globules; n, nuclei.
Fig. 10. Collozoum inerme, Hkl.,	×	2	[25]
An old, cylindrical, articulated cœnobium; the red points are centralcapsules.
Fig. 11. Collozoum inerme, Hkl.,	×	2	[25]
A young cylindrical cœnobium; the red points are central capsules.
Fig. 12. Collozoum inerme, Hkl.,	×	400	[25]
A piece of a young colony with eight small central capsules, without oil-globules. n, The central nucleus in different stages of division. Two capsules are also dividing. x, Xanthellæ in the jelly-like calymma (blue), which also contains numerous vacuoles.

PLATE 4.

Legion SPUMELLARIA.

Orders BELOIDEA.

Families Sphærozoida.

PLATE 4. Sphærozoida Diam. Page. Fig. 1. Sphærozoum trigeminum, n. sp., × 50 [43] An annular colony. The main mass of the jelly-colony is filled up by large alveoles; the entire surface is densely covered with spicula, and beyond this skeleton-cover lie the spherical central capsules, each with an oil-globule. This species is by mistake not mentioned in the text. Fig. 2. Sphærozoum alveolatum, n. sp., × 50 [43] Section through a spherical colony; displaying the inside of a hemisphere. All the central capsules lie in a single stratum on the surface of the jelly-sphere, each being surrounded by a thick-walled alveole. The spicula lie between the alveole and the capsule, which includes a central oil-globule. Fig. 3. Sphærozoum alveolatum, n. sp., × 400 [43] A single central capsule, filled up by crystal-spores. Numerous geminato-radiate spicula and spherical xanthellæ lie between the capsule and the including thick-walled alveole. In the jelly-calymma, between the capsule and the alveole, numerous thin ramified pseudopodia are expanded. Fig. 4. Sphærozoum geminatum, n. sp., × 400 [45] A single central capsule, with a central oil-globule, surrounded by numerous spicula and spherical xanthellæ. The jelly-substance of the calymma is expanded between the points of the spicula. Fig. 5. Sphærozoum variabile, n. sp., × 300 [45] Three isolated spicula. Fig. 6. Sphærozoum pandora, n. sp. (vel Rhaphidozoum pandora), × 300 [49] A group of various spicula. Fig. 7. Sphærozoum verticillatum, n. sp., × 300 [44] A single spiculum. Fig. 8. Sphærozoum arborescens, n. sp., × 300 [44] A single spiculum. Fig. 9. Sphærozoum armatum, n. sp., × 300 [43] A single spiculum.

PLATE 4.
Sphærozoida
Diam.			Page.
Fig. 1. Sphærozoum trigeminum, n. sp.,	×	50	[43]
An annular colony. The main mass of the jelly-colony is filled up by large alveoles; the entire surface is densely covered with spicula, and beyond this skeleton-cover lie the spherical central capsules, each with an oil-globule. This species is by mistake not mentioned in the text.
Fig. 2. Sphærozoum alveolatum, n. sp.,	×	50	[43]
Section through a spherical colony; displaying the inside of a hemisphere. All the central capsules lie in a single stratum on the surface of the jelly-sphere, each being surrounded by a thick-walled alveole. The spicula lie between the alveole and the capsule, which includes a central oil-globule.
Fig. 3. Sphærozoum alveolatum, n. sp.,	×	400	[43]
A single central capsule, filled up by crystal-spores. Numerous geminato-radiate spicula and spherical xanthellæ lie between the capsule and the including thick-walled alveole. In the jelly-calymma, between the capsule and the alveole, numerous thin ramified pseudopodia are expanded.
Fig. 4. Sphærozoum geminatum, n. sp.,	×	400	[45]
A single central capsule, with a central oil-globule, surrounded by numerous spicula and spherical xanthellæ. The jelly-substance of the calymma is expanded between the points of the spicula.
Fig. 5. Sphærozoum variabile, n. sp.,	×	300	[45]
Three isolated spicula.
Fig. 6. Sphærozoum pandora, n. sp. (vel Rhaphidozoum pandora),	×	300	[49]
A group of various spicula.
Fig. 7. Sphærozoum verticillatum, n. sp.,	×	300	[44]
A single spiculum.
Fig. 8. Sphærozoum arborescens, n. sp.,	×	300	[44]
A single spiculum.
Fig. 9. Sphærozoum armatum, n. sp.,	×	300	[43]
A single spiculum.

PLATE 5.