244 E. RAY LANKESTER. 
figured by Leidy, in his large volume on Rhizopoda in the 
United States Geological Survey of the Territories, 1879, 
presents some points of agreement with Chlamydomyxa, and 
was discovered by Leidy upon Sphagnum. Yet inasmuch as 
neither the delicate filaments nor the fusiform nuclei, nor the 
central coloured vesicles (granules), nor cellulose laminated 
cysts are ascribed by Leidy to his Biomyxa, we must suppose 
that it indicates a distinct organism, not even closely related 
to Chlamydomyxa. 
OxrorD; July 8th, 1896. 
EXPLANATION OF PLATES 14 & 15, 
Illustrating Professor Ray Lankester’s memoir on “ Chlamy- 
domyxa montana, n. sp.” 
All the figures except Fig. 6 are drawn to the same scale. 
Fic. 1.—Chlamydomyxa montana, n. sp., in an unencysted expanded 
condition. 
Fic. 2.—The same specimen-after an interval of five minutes. Drawn at 
Pontresina from a living specimen as seen with objective No. 10 immersion 
of Hartnack, August 22nd, 1886. 
Fic. 3.—Another and larger specimen observed and drawn at the same 
time. 
Fic. 4.—A specimen which is beginning to expand its filaments. After 
five minutes the threads would have a much wider extension. 
Fic. 5.—A single fusiform corpuscle (nucleus) greatly magnified, showing 
its shape and its relation to the filament. The actual length of the corpuscle 
iS =5455 Inch. 
Fig. 6.—An encysted specimen of C. montana which has divided into 
three. Pontresina, August, 1886. 
Fic. 7.—An encysted specimen of C. montana which has divided into 
two. Pontresina. 
Fic. 8.—An encysted specimen of C. montana which has developed 
chlorophyll and a crimson oil drop. The cyst-wall is simple. Pontresina. 
Fic. 9.—Three similar encysted specimens. Pontresina. These and the 
last were brought alive to London and drawn there. 
Fic. 10.—A spherical cyst with eight lamine to the cyst-wall and a golden 
yellow pigment. This last specimen observed and drawn at the Maloja in~ 
1892. 
