32 THE NAUTILUS. 



Crenella glandula Totten. 

 Periploma leanum Conr. 

 Thracia truncata High. & Ads. 

 Cyprina islandica L. (young). 

 Astarte portlandica Migh. 

 Cardium pinnidatum Conr. 

 Macoma calcarca Gmel. (young). 

 Ensis directus Conr. (fragments). 

 Siliqua costata Say (fragments). 

 Spisula polynyma Stimp. (young). 

 Saxicava arctica L. 

 Solariella obscura Couth. 

 Odostomia sulcosa Migh. 

 Epitonium groenlandicum Perry. 

 Epitonium costulatum Migh. & Ads. 

 Natica clausa Brod. & Sowb. 

 Polinices heros Say (young). 

 Polinices triseriata Say. 

 Polinices immaculata Totten. 

 Polinices groenlandica Moll. 

 Velutina undata Brown. 

 Crepidula plana Say. 

 Cingula carinata Migh. & Ads. 

 Turritellopsis acicula Stimp. 

 Aporrhais occidental-is Beck (young). 

 Alectrion trivittata Say. 

 Anachis avara similis Rav. 

 Buccinum undatum L. (j-oung). 

 Chrysodomus 10-costatus Say (young). 

 Coins stimpsonii Morch. (young). 

 Coins pygmaeus Old. 

 Beta scalaris Moll. 

 Bela harpularia Couth. 

 Bela pleurotomaria Couth. 

 Bela bicarinata Couth. 

 Retusa pertenuis Migh. 

 Retusa gouldii Couth. 

 Cylichna alba Brown. 

 Polypus arcticus Prosch. 



