PLATE CXLVI. 



Amphiou — Development (p. 902). 



Fig. 1 . Zoea with two pairs of legs ; ventral aspect ; enlarged thirty times ; h, first 

 gnathopod; i, second gnathopod. 



,, 2z. Telson of a second specimen (pp. 903, 915). 



„ 3. Young with three pairs of legs ; ventral aspect of cephalon and pereion ; ph, 

 ph, phymacerite (pp. 903, 915). 



„ 3d. Oral appendages. 



,, 4. Young with fourth pair of legs (I) in process of development ; ventral aspect ; 

 enlarged twenty times (pp. 905, 915). 



,, 5. A second specimen ; portion of pereion showing the fourth pair (I) biramose 

 (p. 905). 



„ 6. Cephalon of a specimen with five pairs of legs attached to the pereion ; 

 ventral surface, magnified ; ph, ph, phymacerite. 



