280 MR J. T. CUNNINGHAM ON STICHOCOTYLE NEPHROPIS. 



Figs. 1, 2, 3, 4 were drawn from fresh specimens. All were drawn without the aid of a camera 

 lucida. 



Fig. 1. Ventral view of Stichocotyle, as seen under slight pressure. 



Fig. 2. Optical section of the whole animal, seen with dorsal surface upwards. 



Fig. 3. Optical section, showing termination of water-vessel system. 



Fig. 4. Very young specimen, with seven suckers. 



Fig. 5. Transverse section, passing through middle of first sucker of moderate-sized specimen. 



Fig. 6. Section through pre-oral region of same specimen. 



The fractions represent the relation of the diameter of the drawing to that of the object. 





