408 
Transactions of the Society. 
which are easily overlooked on account of their resemblance to some 
confer vaceous algae ; the filaments have a very wide gelatinous sheath 
(up to 54 fi diam.). 
There is an almost imperceptible constriction at the middle of the 
cells, and on each side of it a very minute inflation, often causing the 
widest part of the cell to he in the middle. In a gathering made in 
August 1897, from a hog in the New Forest, it was obtained with 
zygospores. 
Zygosporae globosae, glabrae, nonnunquam mamillatae ad 
polos oppositos. Diam. zygosp. 23-28 y. 
Some filaments showed the formation of aplanospores, breaking 
up into separate cells during their formation. These spores were 
elliptical or oblong-elliptical, with acutely rounded poles, and when 
mature had a strong yellowish punctate membrane. Long, aplanosp. 
20-31 y; lat. 9*5-11 y. 
Ord. Protococcoidese. 
Fam. Volvocineae. 
Genus Volvox Ehrenb. 
1 . V. glohator (L.) Ehrenb. I. Ep. II. U. 
Genus Eudorina Ehrenb. 
1. E. elegans Ehrenb. II. Ki. III., Ew., M., Mp., Pu., Wo. 
y. Go. 
Genus Pandorina Bory. 
1. P. morum (Mull.) Bory. General. 
Genus Gonium Muller. 
1. G. perforate Muller. I. Ep. III. B., Ew.. Mp., Ba., W., Wt. 
Y. Go. 
Genus Tetragonium West A G. S. West. 
1. T. lacustre West & G. S. West. III. E. 
Genus Chlamydomonas Ehrenb. 
*1. C. Kleinii Schmidle. II. U. III. B., C., E., Wi. 
Fam. Palmellaceae. 
Sub-fam. CcENOBiEiE. 
Genus Hydrodictyon Roth. 
1. H. reticulatum (L.) Lagerh. I. River Lea (J. H. Vanstone, 
1893). 
