PLATE X ( continued ). 
23. — A full-grown Myxastrum during very rich nourishment ; indeed, as well 
fed as possible. The radial pseudopods, which radiate from the cen- 
tral plasma-ball, arrange themselves in tufts over the captured mor- 
sels of prey, aud draw them into the sarcode-body. In the middle 
are seen three Naviculce ; beneath, a chain of Bacillaria ; and above 
and on the right a Peridinium. A great quantity of corpuscles are 
scattered through the protoplasm, x 280. 
24. — A full grown Myxastrum, fasting, without food. From the whole 
homogeneous sarcode-body radiate a very large number of stiffened, 
simple, radial pseudopods, of which only very few ramify or anasto- 
mose. The number of corpuscles in the plasma is very inconsider- 
able. X 280. 
Fig. 25 — 30. Protamceba primitiva. X 400. 
25. — Protamceba primitiva, with several short processes. 
26. — The same, with a long process. 
27. — The same, at the first commencement of fission. 
28. — The same, with the division further advanced. 
29. — The same, with the division nearly completed. 
30. — The same, divided into two individuals (a and b). 
Fig. 31 — 33. Myxodictyum sociale. 
31. — Myxodictyum sociale, a colony of seventeen actinophrys-like Monera, 
united by a sarcode-net. X 400. 
32. - — A single portion of the sarcode-net. X 600. 
33. — A single individual which has detached itself from the colony of seven- 
teen Monera. x 400. 
