FIG. 8Z.Tetrarhynckus reptans. I, Reduced figure of a sunfish, showing the worms in 

 situ; 2, head ot a worm in its capsule ; 3, tsenioid scolex ; 4, section of the immature 

 strobile ; 6, proboscis ; 6, row of hooks ; 7, 8, large and small hooks (magnified 260 

 diameters) ; 9, head of the scolex viewed from above. Original. 



