Bulletin of the Museum of Comparative Zoology, 



AT HARVARD COLLEGE. 



VOL. XI. No. 8. 



A SUPPLEMENT TO THE FIFTH VOLUME OF THE TERRESTRIAL 

 AIR-BREATHING MOLLUSKS OF THE UNITED STATES AND 

 ADJACENT TERRITORIES. 



BY W. G. BINNEY. 



CAMBRIDGE: 



PRINTED FOR THE MUSEUM. 

 DECKMBER, 1883. 



