246 THE ESSEX NATURALIST.
2. Cryptodifflugia oviformis. Specimen with mass of debris
attached to mouth. Proto-
plasm not completely filling
test, but showing attachment
at various points. X 1500.
3. Do. do. Two specimens joined mouth
to mouth. One test empty, the
other containing an encapsuled
(? encysted) mass of protoplasm,
probably the result of conjuga-
tion. X 1000.
4. Do. do. Outline of active specimen seen
from above. Mouth indicated by
small circle in middle. X 600.
5. Do. do. Cyst within broken upper half
of test. x 600.
6. Phalansterium solitarium, Sandon (?). Four individuals
with active flagella, embedded in
mass of pellets (the latter only
indicated in part.) x 1200.
7. Do. do. Five individuals in a more or
less contracted condition. One
flagellum still extended, another
partly retracted and terminating
in a ring as is often the case with
flagella of many kinds. x 1200.
8. Petalomonas sp. Specimen with flagellum extended and
showing the four long and
divergent posterior processes. X
1500.
9. Do. Outline of view from above. X
1500.
10. Conidia of Tetracladium marchalianum (?). X 1000.
11. Do. Titaea sp. x 2000.
12. Do. Helicomyces roseus (?). x 1000.