422 JONES — MOLLUSCA OF NOVA SCOTIA. 



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S. costata, Ad. Fishing banks. (Willis.) 



Solenomya velum, Say. Fishing banks ; very rare. (Willis.) 



S. borealis, Tott. Fishing banks ; very rare. (Willis.) Halifax 

 harbour; rare. (Verrill.) 



Panopoea arctica, Gould. Halifax harbour. 



Glycymeris siliqua, Lam. Halifax harbour. Sable Island 

 beach; dead specimens. .(Willis.) 



Fam. Myad.e. 



Mya arenaria, L. Halifax harbour, etc. ; very common. 

 M. truncata, L. Halifax harbour ; not uncommon. 



Fam. COEBULIDiE. 



Gorbula contracta, Say. 

 Necera arctica. La Have banks. 



Fam. Pandokid^e. 



Clidiophora trilineata, Carp. Halifax harbour; rare. I have 

 only dredged stray valves. 



Northumberland Strait, north of Pictou Island. (Whiteaves.) 



Fam. ANATINID.E. 



Lyonsia arenosa, Morch. Halifax harbour. 

 Periploma papyracea, Verrill. Sable Island. (Willis.) 

 Cochlodesma leanum, St. Fishing banks. (Willis.) 

 Thracia Conradi, Couth. Fishing banks. (Willis.) 

 T. myojjsis, Beck. Halifax harbour. (Smith and Harger.) 

 Fishing banks. (Willis.) 



T. truncata, Migh and Ad. Fishing banks. (Willis.) 



Fam. Mactead.e. 



Mactra solidissima, Chemn. Sandy beaches; whole coast. I 

 have a specimen in my collection, presented to me by the late Mr. 

 Willis, measuring in length 7^ inches, and 6-| inches in extreme 

 breadth. It came from Sable Island. 



M. oralis, Gould. Sable Island. (Willis?) 



Muli/nAa lateralis, Gray. 



