216 The Philippine Journal of Science 1922 
Many of the coenobia showed numerous bald spots of irregular 
form and varying size. From these spots the cells were gone. 
Around the borders of these spots some cells appeared to be 
partly loosened and about to escape. In the morning specimen 
17, with very large daughters, was placed in a glass ring under 
a cover glass. By 1.30 in the afternoon cells had disappeared 
from a very large area, and the water in the ring was full 
of green, motile cells of about the same size. 
Specimen 18.—August 5, 1914. In material collected the day 
before and kept in a watch glass an asexual coenobium with 
eight daughters measured 1,630 by 1,860 » and was estimated 
to contain 20,200 cells. The daughters were all in the hindmost 
half of the mother and were about 370 by 440 ». The somatic 
protoplasts of the daughters were about 4 » wide and almost in 
contact with one another. The number of these protoplasts was 
estimated to be 14,820. The gonidia in the daughters were 
about 28 » in diameter. 
Specimen 19.—August 5, 1914. In the same material as the 
preceding a sexual coenobium from which the anterior fifth 
was gone measured (restored) 620 by 660 ». It contained 
oogonidia distributed beneath the remaining portion of the coe- 
nobium wall. The cells of the coenobium were ovoid and meas- 
ured about 5 » wide. The number of cells was estimated to 
be about 19,450. The oogonidia were about 25 » wide, and their 
number was estimated to be about 500.’ 
Specimen 20.—August 20, 1914. In material from Pasig a 
coenobium with nine daughters measured 1,950 by 2,250 ». The 
lateral protoplasts measured 4.5 to 5 », and they were 15 to 20 » 
apart. The number of cells was estimated to be about 25,900. 
The daughters were all of about the same size, 450 by 530». The 
reproductive bodies in the daughters were all embryos of about 
the same age and size. They measured about 30 » wide and were 
16- or 32-celled spheres, each with an opening (phialopore) of 
about the size of one cell. 
Specimen 21.—December 15, 1917. From living material from 
‘Pond E in Pasay one sexual coenobium was mounted in a 
hanging drop. It measured 800 by 900 » and consisted of 
about 10,700 cells. It contained forty-eight orange oospores 
and four green oogonidia, of which none were in the forward 
"It was observed that there were about 4 of the oogonidia per area 
90 sq. # which corresponds to about 623 for the whole spheroid. From this 
number 123 was deducted for the anterior fifth which presumably con- 
tained no reproductive cells. 
