136 



HANDBOOK OF INVERTEBRATE ZOOLOGY. 

 CL 



3 



CLb 



Fig. 80. 



Fig. 80. — Ventral view of an older larva. (Drawn from nature by 

 E. B. Wilson. ) 



am. Ambiilacral area of developing starfish, ab, Ab-oral area of 

 developing starfish, ali^, al/>. Its free ends. 



Other letters as in Fig. 78. 



