Jour, Mar. Biol. Assoc. Vol. I, P* II. 



Plate X. 



prouMraZ rings 



aperture of czsophagiLS 



. outer Up. 

 ruphrvduurv' 



'-, bodY cczvi^. 



TLepkruiuurv: 



\ 7ief?iridiiirruf^ 



OMMyl^ ^inn 



glandular moiss surrounding 

 the penis. 



VOLE deferens . 



perus 



Fl^. is. 



S-F. Harmer del. 



7 Huth, Lith'^ Eiin' 



