112 THE FRESH- WATER CRAYFISH— THE CAPE CRAWFISH 



(b) The two well-developed eyes, and a median eye spot. 



(c) The antennules. 



(d) The antennas, with an exopodite and an endopodite branch. 



(e) The third maxUliped. 



(/) The first and second walking legs, with well-developed feather-like 

 exopodites. 



(g) The long third pair of walking legs, with the rudiment of the exopodite 

 on the first segment of the limb. The fourth and fifth walking legs 

 and the appendages of the abdomen have not yet appeared. 



Endopodite 

 L'Exopodite 



Exopodite 



2nd Pereiopod 



Fi(i. 34. — Phyllosoma larva of the Crawfish. Enlarged. 



