Buccinum lunatum (Say, 1826) accepted as Astyris lunata (Say, 1826) (basis of record)
Buccinum obsoletum (Say, 1822) accepted as Ilyanassa obsoleta (Say, 1822) (basis of record)
Buccinum trivittatum (Say, 1822) accepted as Ilyanassa trivittata (Say, 1822) (basis of record)
Buccinum vibex (Say, 1822) accepted as Phrontis vibex (Say, 1822) (basis of record)
Cerithium emersonii C. B. Adams, 1839 accepted as Retilaskeya emersonii (C. B. Adams, 1839) (original description)
Cerithium greenii C. B. Adams, 1839 accepted as Cerithiopsis greenii (C. B. Adams, 1839) (original description)
Cerithium nigrocinctum C. B. Adams, 1839 accepted as Marshallora nigrocincta (C. B. Adams, 1839) (original description)
Cerithium reticulatum Totten, 1835 accepted as Bittiolum alternatum (Say, 1822) (additional source)
Columbella avara Say, 1822 accepted as Costoanachis avara (Say, 1822) (additional source)
Crepidula convexa Say, 1822 (additional source)
Crepidula fornicata (Linnaeus, 1758) (additional source)
Crepidula plana Say, 1822 (additional source)
Fusus cinereus Say, 1822 accepted as Urosalpinx cinerea (Say, 1822) (basis of record)
Jaminia seminuda C. B. Adams, 1839 accepted as Boonea seminuda (C. B. Adams, 1839) (original description)
Purpura lapillus (Linnaeus, 1758) accepted as Nucella lapillus (Linnaeus, 1758) (basis of record)
Pyramis fusca C. B. Adams, 1839 accepted as Sayella fusca (C. B. Adams, 1839) (original description)
Pyrula canaliculatus (Linnaeus, 1758) accepted as Busycotypus canaliculatus (Linnaeus, 1758) (additional source)
Pyrula carica (Gmelin, 1791) accepted as Busycon carica (Gmelin, 1791) (basis of record)
Ranella caudata Say, 1822 accepted as Eupleura caudata (Say, 1822) (basis of record)
Turritella interrupta Totten, 1835 accepted as Turbonilla interrupta (Totten, 1835) (additional source)

Massachusetts for Cerithium emersonii C. B. Adams, 1839 
Massachusetts for Jaminia seminuda C. B. Adams, 1839