U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 81. ART. 13 PL. 2 



ni\ 



3v 



'«^ 



'^ 



W 



\ -'-V^ 



Mh 





6-7. Campula piiUiata: 6, After Looss, 1885: 7, egg, after Looss, 1885. 



8-10. C. delphini: 8, Ventral view, after Poirier, 1886; 9, dorsal view showing digestive system and 

 arrangement of vitelline ducts, after Poirier, 1886; 10, egg, after Poirier, 1886. 



