508 The Philippine Journal of Science 
PLATE 5. VOLVOX BARBERI SP. NOV. 
Fic. 15. A nearly mature asexual coenobium with eight daughters that 
have developed cilia. x 100. 
16. An asexual coenobium with four daughters that are beginning 
to develop cilia. 100. 
17. An asexual coenobium with six daughters that have begun to de- 
velop cilia. x 100. 
TEXT FIGURES 
Fic, 1. Janetosphaera aurea (Volvox aureus). Diagram of cells and 
membranes as seen in surface view. After Meyer. 
2. Janetosphaera aurea (Volvox aureus). Diagram of cells and 
membranes as seen in cross section of coenobium. After Meyer. 
8. Volvox globator. Diagram of cell membranes as seen in a cross- 
section view of a portion of the coenobium wall. After Meyer. 
4, Volvox globator. Diagram of cell membranes as seen in surface 
view and tangential sections of the coenobium wall. After 
Meyer. 
5. Volovox barberi sp. nov. Coenobium wall of a nearly mature 
asexual coenobium, in optical section from a living specimen, 
showing protoplasts and the visible limits of the membranes. 
