(I 7 



EXPLANATIONS AND REFERENCES, 



PLATE CVII. 



Figures magnified 125 diameters. 



PAGE. 

 Figs 1, 2. CLADOPHORA FRACTA, . . . . . .124 



3, 4. escaping zoogonuliu, . . 124 



5, 6. forma gossypina . . , . .125 



7, 8. CLADOPHORA FLOTOAVIANA, . 126 



