MASKED CRABS. 



273 



first, owing to the superstition of the Norwegian 

 sailors, who regard it as "bewitched." It is also 

 found on the northern shores of Britain. 



Fig. 204. 



Female of Masked Crab (Corystes CassiveJannus). 



The Crystal Palace Aquarium possesses living 

 specimens of Euryonome aspersa, Hyas coarctus, 

 Pirimela denticulata, Pihuniws hivtellus, as well as 

 the "nut" crabs (Ebalia\ and the "angled" crabs 



