606 



Melita testudinata (Florida 1 ). 



Aristotle's Lantern. 



Diadema setosum (West Indies'). 



SEA URCHINS. 



COPYRIGHT 1903, Br A. W. MUMFORD, CHICAGO 



Echinarachinus excentricus (California). 

 Strongylocentrotus drobachiensis (Massachusetts). 

 Kipponoe esculenta (.Bahamas). 



