120 The Philippine Journal of Science 1988 
Coenobia spherical; asexual reaching a diameter of 770 yn; 
female, 610 «4; and male, 270 ». Number of somatic cells not 
stated; protoplasts globose, of size not. stated. Gonidia gen- 
erally 8, all in a coenobium of about the same size and confined 
to the posterior three-fourths of the coenobium; arrangement 
not noted. Size of gonidia at time of differentiation not noted: 
reaching 40 » in daughters of about 195 » before the birth of 
the daughters; attaining a diameter of 85 ,» before dividing; 
chloroplast forming a peripheral network within the gonidium. 
Asexual daughters formed alone, with female daughters, or 
with male coenobia in the same mother coenobium. Male and 
female coenobia not observed in the same mother. Oogonidia 
30 to 50, distributed in the posterior three-fourths of the female 
coenobium; reaching two or three times the size of the somatic 
cells in daughters yet unborn. Oospores about 40 » in diameter, 
with the thickened wall “slightly wavy in its outline’ or wavy 
toothed. Androgonidia upward of 100, scattered over the whole 
internal periphery of each male coenobium; reaching 40 » in di- 
ameter; producing antheridia before the birth of the male coe- 
nobium. Antheridia consisting of platelets of 128 (?) sperms. 
Each spermatozoid with a pair of terminal cilia and a lateral 
stigma; spermatozoids liberated after the birth of the male 
coenobium. 
Habitat——A pool in Bombay, India (leg. H. J. Carter, 1858). 
MERRILLOSPHAERA CARTERI (Stein) Shaw var. MANILANA var. nov. 
Plates 1 to 6. ; 
Coenobia spherical or slightly elongated; asexual reaching 
about 720 by 760 »; female, about 690 by 730 »; and male, 
about 260 by 280 » Number of somatic cells in asexual coe- 
nobia as high as 11,400; in female coenobia, 8,000; and in male 
coenobia, 2,500; commonly much fewer. Somatic protoplasts 
ovoid, about 5 to 6 » thick. Gonidia 8, about equal in size, 
arranged symmetrically, 4 in front of, and 4 behind, the equator, 
sometimes with 1 to 4 additional, somewhat smaller gonidia 
nearer the hinder pole. Gonidia in very young coenobia about 
17 » in diameter; reaching at time of birth about 24 », and at 
maturity about 85 ». Asexual daughters reaching about 200 po 
diameter at time of birth. Male coenobia producing about 112 
androgonidia. Androgonidia reaching about 16 pw; dividing 
before birth of the male coenobium to form sperm platelets that 
are more or less cupped. Female coenobia producing about 24 
to 40 oogonia (oogonidia) of which none is in the front part 
