258 ANIMALS OF THE SEA FLOOR 



FIG. 184. CHITON. 



FIG. 185. EOLIS, A SEA -SLUG. (Fics. 184 AND 185 FROM THE 

 "CAMBRIDGE NATURAL HISTORY," BY PERMISSION OF MESSRS. 

 MACMILLAN.) 



FIG. 186. BENTHOTEUTHIS, A DEEP-SEA SQUID ("BLAKE ') 



