392 A NEW GENUS OF CARNIVOROUS SNAILS. 



Plate x. 



Fig. 6. — Alimentary canal of S. iwvoseelandica, showing, a, mouth ; h, 

 pharynx ; c, retractor muscles of the latter ; d, salivary glands ; 

 /, stomach ; A, hepatic ducts ; g, intestine. Magnified. 



Fig. 7. — Eviscerated cavity of body of ditto, showing foot-gland left 

 undisturbed. Magnified. 



Fig. 8. — Egg of ditto. Magnified. 



Fig. 9. — Detail sketch of anterior portion of the genitalia of ditto, attached 

 to a scrap of the body wall ; on the left the right tentacle 

 enters. Magnified, 



Fig. 10. — Diagram of visceral hump of ditto, shell and roof of lung removed, 

 showing, a, heart ; b, shell-muscle ; c, kidney ; d, position of 

 anus ; e, free visceral coil withdrawn from the initial shell 

 whorl. Magnified. 



Fig. 11. — Inner half row of teeth from the radula of ditto. Much magnified. 



