Plate X. 



Vol. IV. 



Reproductive Organs of — i Helix 7-evelata Mich, x 3, a mucous glands 

 and rudimentary dart-sacs further enlarged ; 2 Helix obvoluta Miill. (after 

 Schmidt) slightly enlarged, mg ds doubtful organs ; 3 Helix Carttisimia 

 Miill. y.2, d doubtful organ, a same enlarged ; 4 Helix Cantiana Mont, 

 slightly enlarged, ^doubtful organ ; 5 Helix sericea Miill, (not Drap.) x 3, 

 showing absence of accessory organs. 



