Journ. of Jtialacology, IS 94, vol Hi., pt. 8. 





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Fig. I. — Reproductive organs of Arion citrinus, Westerl. \ 

 Fig. 2. — Their terminal ducts from the opposite side. $-1 

 Fig. 3. — Inside portion of the oviduct in part x x fig. 2. 

 Fig. 4. — The terminal ducts of the typical fuscus, Mull. 

 Fig. 5. — The terminal ducts of A. fuscus, v. boettgeri, Poll. 



J.F.g., del. 



