516 
Philippine Journal of Science 
1919 
Ca m/p bellosphaer a V olvox 
Piatydorina 
Gonvwm 
Chlam ydomonas 
Fig. 1. Phylogeny of the Volvocese. 
A series of specimens is described which supply the salient 
features of a rounded life history with asexual and sexual repro- 
duction. Many details are left for future work and workers. 
The sexual coenobia are monoecious. 
Formal diagnoses of the genus and species are followed by 
a comparison of the new genus with the recorded species of 
Volvox and closely related genera. Some existing synonomy 
is pointed out, reducing V. weismannia Powers to V. carteri 
Stein, and some future synonomy is foreshadowed. 
Volvox aureus Ehrenberg is reported as having been collected 
in California in 1896. The specimens were found to agree 
closely with the ample description of the species by Klein (’89A 
and ’90). 
