1 86 NEW YORK STATE MUSEUM 



but is further represented by a stain in the rock. It is not thought 

 that this structure can be construed as a basal spicular tuft. 



Figure i is a single individual broken at the basal end but indi- 

 cating an extending stem, while figure 3 is the basal end and very 

 much compressed stalk of another individual. 



