242 E. RAY LANKESTER, 
C. montana which I observed (in considerable numbers for 
several days) were always entirely free from any cyst-wall, and, 
moreover, their central granules or vesicles were of an uniform 
yellow-brown colour. This may be due to specific difference, 
but it would be interesting to know what appearance C. mon- 
tana presents early in the season,—for instance, in June. 
The very regular circular cyst drawn in fig. 10 is a fairly 
common form. As shown in the figure, the cyst contents are 
yellow in colour, almost bright yellow, with radiating struc- 
ture resembling yolk-columns. As many as eight concentric 
lamin were observed in the cyst drawn in fig. 10. 
Affinities of Chlamydomyxa.—I do not think that either the 
observations made by me on C. montana, or the progress of 
our knowledge of Protozoa since Archer described C. labyrin- 
thuloides twenty-one years ago, enables us definitely to assign 
to Chlamydomyxa its position in relation to other Protozoa 
Gymnomyxa. 
I cannot agree with Professor Geddes that it should be 
regarded as related to the Algz, since affinities have to be 
determined by a consideration of all the circumstances, and I 
cannot see how Chlamydomyxa would fit in with known Alge. 
I fully agree with Archer that the nearest ally of Chlamy- 
domyxa is the Labyrinthula of Cienkowski, and that any con- 
sideration of affinities must be based on this alliance. Archer 
was inclined to regard the “ threads”’ of Chlamydomyxa as 
protoplasmic, whilst Cienkowski regarded those of Labyrin- 
thula as of a horny nature. I do not think that there is any 
essential difference between the threads of Labyrinthula and of 
Chlamydomyxa. I regard them both as a“ formed material,” 
differing from streaming protoplasm, and comparable to the 
axial pseudopodial filaments of Heliozoa, The fusiform travel- 
ling nuclei of Chlamydomyxa differ very greatly from the oat- 
shaped nucleated corpuscles of Labyrinthula both in size and 
structure. But it seems to me a reasonable view that the con- 
dition of Chlamydomyxa is derived from that of Labyrinthula, 
aud that the fusiform nuclei of the former represent the oat- 
shaped corpuscles of the latter in a reduced condition. The 
