ME.  C.  SPENCE  BATE  ON  THE  DEVELOPMENT  OP  DECAPOD  CEUSTACEA.  605 
PLATE  XLIII. 
Fig.  F.  Larva  somewhat  older  than  the  preceding. 
Fig.  F'.  Ditto  ditto,  viewed  dorsally. 
Fig.  F".  Carapax  with  the  eyes,  one  anterior  and  posterior  antenna  in  situ,  seen  from 
beneath. 
PLATE  XLIV. 
Fig.  G.  Larva  as  it  approaches  the  character  of  the  Bmchyura. 
Fig.  G'.  Carapax  viewed  from  beneath. 
Fig.  G".  Carapax  seen  in  profile. 
Fig.  H.  Young  Carcinus,  approximating  nearer  to  the  adult  form. 
Fig.  H'.  Carapax  seen  from  beneath : left  anterior  antenna  removed. 
PLATE  XLV. 
Fig.  J.  Adult  Carcinus,  viewed  dorsally. 
Fig.  J'.  Adult  Carcinus,  viewed  ventrally. 
PLATE  XLVI. 
Fig.  K.  Diagram  illustrating  the  forms  of  the  carapax  in  its  passage  from  the  larva  to 
the  adult  Carcinus.  Fig.  A et  seq.  The  progressive  development  of  parts. 
