7.N 
\ 
h 
4) 
4 
M7 | 
Y 
bs AN 
Fic. 150.—Dorsal aspect of swimming crab (Portunzs). 
&., Paddle; Ada., abdomen; A1.,antennules ; 42., antennz ; Z., eyes ; /., forceps 
Fic. 151.—Dorsal aspect of shore crab (Carcznus). 
Abd., Abdomen; A}, antennules; A%., antenne; Z., eyes; ., forceps. 
