PLATE 3. 



COLLOZOIDA. 



Diam. Page 

 Fig. 1. Collozoum serpentinum, n. sp. (vel Collophidium serpentinum, Hkl.), . x 10 26 



A living ccenobium, 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 xanthellfe are scattered between the radial 

 pseudopodia in the periphery. 



Fig. 2. Collozoum serpentinum, n. sp., .... . x 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., . x 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 ; 

 n, extracapsular alveoles; x, xanthella? or "yellow cells." 



Fig. 4. Collozoum amceboides, n. sp., . . . . . . . x 100 28 



A spherical coenobium or jelly-colony. Each amoeboid central capsule contains an oil- 

 globule ; the small red points are nuclei. 



Fig. 5. Collozoum amceboides, n. sp., ..... . x 400 28 



c, A single isolated central capsule ; n, nuclei ; k, oil-globule. 



Fig. 6. Collozoum vermiforme, n. sp., . . . . . . . x 30 27 



g, A spherical ccenobinm or jelly-colony ; a, large alveoles, forming a cortical zone; c, central 

 capsules; k, oil-globules. 



Fig. 7. Collozoum vermiforme, n. sp., . . . . . . . x 100 27 



c, A single isolated central capsule ; x, xanthclhu surroundiug this central capsule ; k, oil- 

 globules; n, nuclei. 



Fig. 8. Collozoum ellipsoides, n. sp., .... . x 2 26 



A spherical colony ; the red points arc central capsules. 



Fig. 9. Collozoum ellipsoides, n. sp., .... x 150 26 



c, A single isolated central capsule ; k, oil-globules ; n, nuclei. 



Fig. 10. Collozoum inerme, Hkl., ..... . x 2 25 



An old, cylindrical, articulated ccenobium ; the red points are central capsules. 



Fig. 11. Collozoum inerme, Hkl., . . . . . . x 2 25 



A young cylindrical ccenobium ; the red points are central capsules. 



Fig. 12. Collozoum inerme, Hkl., . . . . . . x 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, a-, Xan- 

 thellx in the jelly-like calymma (blue), which also contains numerous vacuolcs. 



