224 



Later, the posterolateral arms form and the overall body size of the larva 

 increases (Figure 172). 



Figure 172: Amphipholis kochii. 



A — early pluteus I stage; B — joining of rods of the larval skeleton in pluteus I stage; 



C — pluteus I stage; D — joining of rods of the left half of the skeleton; E — joining 



of basal rods of the skeleton. 



al — anterolateral arms; br — basal rod; pi — posterolateral arm; po — postoral arm. 



