964 *Xatica canaliculatu 

 can re n a 

 clausa 



9G5 

 1/966 



. 967 

 : 968 

 1/1369 

 1/970 

 971 

 1/972 

 973 



duplicata 



heros 



immaculata 



flava 



lunata 



pusilla 



triseriata 



Gould B 

 Lam. B 

 Brod. B 

 Say A 

 A 



Totten B 



Gould C 



Say C 



B 



B 



1 974 *Sigaretus haliotoideus Lam. B 



975 " maculatus Say C 



v 976 * " perspectivus " B 



1/977 *Velutina loevigata Brown C 



( 978 " ovata " C 



^\979 " zonata Gould C 



980 *Odostomia exigua Couth. B 



981 " convoluta Gould C 



982 * " fusca Adams B 



983 * " producta " B 



984 " seminuda " C 



985 * " trifida Totten C 



> 986 *Tornatellapunctostriata Adams C 



987 Vermetus lumbricalis Linn. C 



' 988 Janthina communis Lam. C 



989 " fragilis Brug. C 



990 Scalaria clathrus Say C 



991 * " Groenlandica B 



992 * " Humphreysii Kiener C 



Massachusetts. 

 Southern coast, 

 Mass. Bay. 

 New York. 



Maine to N. York 

 Mass. Bay. 

 Southern coast. 



u u 



Atlantic coast. 



Mass. Bay. 

 Southern coasU 

 New Jersey. 



Cape Ann. 



u u 



Mass. Bay. 



Boston Bay. 

 Mass. Bay. 

 Eastern States. 



u u 



U II 



Rhode Island. 

 New York Bay* 

 Newport, R. L 



Nantucket. 

 New Bedford. 



Southern coast. 

 Mass. Bay. 

 Atlantic coast. . 



