254 



ANIMALS OF THE SEA FLOOR 



The definition of these regions must not be taken 

 as implying that there is any strict demarcation 



Fig. 179. — Rocinela, an 

 Isopod (" Blake"). 



Fig. 180. — Epimeria, an 

 Amphipod ("Blake"). 



Fig. 181. — Catapagurus, a Hermit-Crab, its Posterior End in 

 a Shell, on which lives a Colony of Anemones (" Blake "). 



between their faunae. There is naturally a great deal of 

 overlapping, and very many species are common to two 



