112 The Philippine Journal of Science 1922 
distances rather than to squares having the same diameters. 
Hence the numbers should be larger than given, by about 15 
per cent. The numbers thus revised are, respectively: 1610, 
1440, 1440, —, 2180, 1675, 1675, and 2080. 
The numbers of reproductive bodies present in the coenobia 
are 8, 11, 10, 9, 9, 10, 10, and 3, respectively. In the latter case, 
that of the largest coenobium, the maturity of the daughter 
coenobia present is such as to suggest that other daughter 
coenobia might have been already discharged from the mother. 
In all of the mother coenobia reproductive bodies are lacking 
in the anterior third and confined to the other two-thirds. In 
two coenobia the only reproductive bodies are daughters, in 
four they are a mixture of reproductive cells and daughters, and 
in the remaining two they are reproductive cells alone. These 
reproductive cells are mostly large, round cells with a doubly 
defined wall, about 55 » in diameter, which Klein called recently 
fertilized eggs. In one coenobium four of these so-called ferti- 
lized eggs are accompanied by five similar cells, somewhat 
smaller and without the double wall, which Klein called nearly 
ripe eggs. Granting that these be in reality eggs and oospores, 
we have here a distinct species of Merrillosphaera. Were they 
resting spores developed from gonidia, we would have a distinct 
variety of M. carteri; but if they be, as I am not now inclined to 
believe, merely asexual gonidia that, for one reason or another, 
were mistaken for eggs, then the variety is hardly distinct. 
The first coenobium on the plate illustrating this variety 
(Klein, ’89B, fig. 1) is one with eight nearly equal daughters 
almost perfectly symmetrically arranged in two quartets. ° One 
member of each quartet is a male coenobium containing andro- 
gonidia which are shown in the first and second stages of division. 
These male coenobia are of about the same size, 80 to 90 », and 
shape as their sisters. The latter were valled female daughter 
colonies. It seems to me more likely that they were in reality 
asexual daughters. Each of them contains a small number of 
relatively large reproductive cells measuring 18 to 20 ». In 
°A coenobium almost exactly like this one is represented diagram- 
matically by Janet (712, p. 117) in his fig. 14, D, under the name Volvox 
aureus. It contains three male coenobia and five asexual daughters that 
are mislabeled female coenobia, each of the latter containing eight or 
nine gonidia that are labeled gynogonidia. There is nothing in this figure 
essentially different from typical Merrillosphaera carteri. Janet’s fig. 
14, F, is evidently M. migulae with a combination of reproductive bodies 
not duplicating anything that was figured by Klein. In this also gonidia 
are labeled gynogonidia, as they ard likewise in his fig. 14, E. ; 
