504 . 
Transactions of the Society. 
Sub-fam. Glceooystide^:. 
Genus Nephrocytium Nag. 
Agardhianum Nag. IY. Ks. 
Nagelii Grun. III. Ea, M. 
ecdysiscepanum West & G. S. West. Y. Go. 
lunatum West. II I. Th. 
Genus Oocystis Nag. 
1. 0. solitaria Wittr. I. Ep. III. Bi, E., Ew., Fg., Rp., Th. 
IV. Ks. YI.N. YII. S. YIII. G, T„ W. 
Forma major Wille. III. Th. 
2. 0. crassa Wittr. III. Mp. YIII. L. 
3. 0. gigas Arch. var. incrassata West. YIII. G. 
4. 0 . Novse Semliee Wille. Y. Go. 
Forma major Wille. YL N. 
Yar. maxima West. YI. N. 
5. 0 . elliptica West. III. Mp. 
6. 0 . asymmetrica West. III. Bi., C., Mp. 
7. 0 . panduriformis West. YIII. G. 
Genus Gloeocystis Nag. 
1 . G. gigas (Kiitz.) Lagerh. [ Chlorococcum gigas (Kiitz.) Grun. ; 
Gloeocystis ampla (Kiitz.) Babenh.] I. Ep. II. Ha., No., 
Wh. III. B, M., Mp. IY. Ks. Y. Go. YIII. G., L., 
K., W. 
Yar. maxima West. III. E. 
2. G. vesiculosa Nag. I. Ep. II. Ha., Ki., Ru. III. Ea., M., 
Mp., Rp, Th., Wi. IY. He, Ks. YI. N. YIII. P. 
3. G. infusionnm (Schrank). [Chlorococcum inf usionum (Schrank) 
Menegh.] III. B, Ew, Wi. YII. D. 
4. G. regularis nob. ( Chlorococcum regular e West). I. Ep. 
III. Bi, Ew, Th. VII. D. YIII. Ill, L. 
Genus Kirchneriella Schmidle. 
1. K. obesa (West) Schmidle ( Selenastrum obesum West). III. 
Bi., Fg., Mp., Pu. 
Genus TJrococcus Kiitz. 
1. U. insignis (Hass.) Kiitz. III. Bi, C, E, Th. YII. S. 
YIII. T. 
Sub-fam. Pkotococcace^:. 
Genus Stichococcus Nag. 
1. S. bacillaris Nag. II. Ki, Pi. III. Nr. Pt, Wi, Boxhill. 
2. S. flaccidus (Kiitz.) Gay. III. B, Rp. 
*3. S. dissectus Gay. III. Damp walls about London. 
