Plate XX. 



Aceste bellidifera \X\v. Thoms. Schizaster canaliferus LA?\n k. 

 P. 88. 



The skeleton of Aceste l)ellidifera Wyv. Thoms., laid out. 



The buccal raemhrane of the same. 



The anal membrane of the same. 



The oalycinal system of the same. 



The calvcinal system of Schizaster canaliferus L.\M(K. 



