EXPLANATION OF THE PLATE 



Figure 1. — Epiphyton fasciculatum, sp. nov. Showing the fine ramified (?)thallus 

 attached to a quadrate fragment, probably a crinoid ossicle. Paratype. Slide 

 No. 2. X 28. 



Figure 2. — E. fasciculatum, sp. nov. A group of the organism, showing well-preserved 

 walls. Cut mainly in a transverse or oblique direction to the tubes. Type. 

 Slide No. 115. x 28. 



Figure 3. — E . fasciculatum, sp. nov. The same more highly magnified, showing the 

 double structure of the cell-walls. Slide No. 115. x 180. 



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