PAE Xe xe ees 
AURELIA FLAVIDULA (p. 5). 
Trails produced by drawing the oral arms of the medusa over the surface of soft plaster, the 
arms being drawn in about the same manner as they would have been if drifted along by a current 
in shallow water near the shore. 
The resemblance of these trails to those of specimens of Eophyton and other trails that have 
been referred to Algzw and other fossil plant remains, is very striking. Compare with figures of 
Pls. XXXII, XXXV. 
170 
