113 



.£oy. $oc, Edin. 



MASTERMAN : EARLY DEVELOPMENT OF CRIBRELLA OCULATA— PLATE V, 



Vol. XL. 



fir. c. 



h. c. 



fill- 5/4 



fill- 5/4 



■ V. 



io 5 



106 



104 



107 



109 



no 



108 



1 TI 



J^-J 



a. x. Axial Sinus. d. s. Dorsal Sac. e. c. Epigastric Ccelom. h. c. Hypogastric Ccelom. hy. Hydroccele. 



>n. Mesenteron. o. c. The Oral Ccelom Elements. pf. c. Pre-oral Ccelom. ph. Peri-hfemal Elements. 



E. & S. LIVINGSTONE, PRINTERS. 



