U. S. F. C. BULLETIN 1900. VAUGHAN. 
PLATE XIV. 
FIG. 1. SIDERASTREA SIDEREA CELL. & SOL.). GENERAL VIEW OF A LARGE SPECIMEN, 
GREATER HORIZONTAL DIAMETER 20.2 CM. 
• * i ^ 
vm&?&ZZ±*+ * •*** r;y*t£, 4 %? I 
FIG. 2. SIDERASTREA SIDEREA (ELL. & SOL.). VIEW OF SAME SPECIMEN FROM ABOVE. 
HEUOTTPE PRINTING CO., BOSTON. 
