JONES — MOLLUSCA OF NOVA SCOTIA. 327 



Fam. CalyptrjEID,e. 



Crejpidida fornicata, Lam. Whole coast. 

 C. plana, Say. Sable Island ; Northern shores ; Bay of Fundy. 

 ( Willis.) La Have Bank. (Smith and Harger.) 

 C. convexa, Say. Sable Island. (Willis.) 



Fam. Fissurellim;. 

 Cemoria Noaehina, Gd. Fishing banks. ( Willis.) 



Fam. Janthinid^e. 



Janthina fragilis, Desh. Sable Island ; occasionally as a 

 drift shell. 



Fam. Trochid^e. 



Margarita cinerea, Gd. Fishing banks. ( Willis.) 

 M. undulata, Sow. Fishing banks. (Willis.) 

 M. helicina, St. Halifax harbour. 

 M. argentata, Gd. 

 M. obscura, Gd. 



M. varicosa, Migh. and Ad. Halifax harbour. (Smith and 

 Harger.) 



Fam. Paludinid^e. 



Valvata tricarinata, Say. Lakes in the interior. 

 Melantho decisa, W. G. Binney. Dartmouth lakes, &c. 

 Amnicola limosa, Hald. Ponds and stagnant waters. 



Fam. Littorinid^:. 



Skaznea planorbis, Forbes and Hanley. 

 Lacuna vincta. Gd. Whole coast. 

 Littorina rudis, Gd. All rocky shores. 

 L. tenebrosa, Gd. All rocky shores. 

 L. Uttorea, Johnston. All rocky shores. 

 L. palliata, Gd. All rocky shores. 



Fam. Scalarid^e. 

 Scalaria Oraoenlandica, Sow. Halifax harbour, LaHave Bank, 

 {Smith and Harger). 



