JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATE VI, 
Illustrating Mr. Currey’s paper on Stephanosphera pluvialis. 
Fig. 
1.—A full-grown Stephanosphera in which the germ-cells have become 
spindle-shaped with protoplasmic elongations. 
2.—Full-grown resting-cells. 
3.—The beginning of division in a resting-cell. 
4,—A resting-cell in which division has advanced further. The outer 
membrane is no longer perceptible. 
5, 6, 7, 8, 9.—Subsequent successive stages of division, showing (in 9) 
the formation of cilia. 
10, 11, 12.—Naked zoospores. 
13, 14.—Encysted zoospores. 
15.—An encysted zoospore with protoplasmic elongations of the primor- 
dial cell. 
16, 17.—Division of encysted zoospores. 
18, 19.—More advanced stages of the same. 
20,—A young eight-celled Stephanosphera family. 
21.—A family of only four cells. 
22, 23.—Young Stephanosphere with the cellular envelope still visible 
within the membrane of the mother-cell. 
24.—Young Stephanosphera with the cellular envelope somewhat flattened. 
25.—Young Stephanosphera viewed equatorially. The outer membrane is 
constricted between the primordial cells, and the latter exhibits 
chlorophyll-granules. 
26.—Formation of microgonidia from the primordial cells of a young 
Stephanosphera family. 
27.—Free microgonidia. 
All the figures x 500. 
