TROCHOPIlt)l;E OF HV ItK'nlDF.S rXClXATl'S (KT'POMATrs). 557 

 Text-figs, lo-ls. 

 Eutoonxjs.tu.s 



Imr 



Sections of segmentation and irastrnlation sta^res of Eupoiiiatiis. 

 bl. Blastocoel. end. Endoclerni. me. CfelomeHol.last. Iml. 

 Left iwrtion of ectomesoblast. Imr. Eiuht i^ortion of same. 



