Acteon melanoides Conrad, 1830 † (original description)
Acteon ovoides Conrad, 1830 † (original description)
Amphidesma carinata Conrad, 1930 † accepted as Semele carinata (Conrad, 1830) † (original description)
Cancellaria lunata Conrad, 1830 † (original description)
Cassis caelata Conrad, 1830 † (original description)
Crassatella alaeformis Conrad, 1830 † (original description)
Cuculaea [sic] accepted as Cucullaea Lamarck, 1801 (basis of record)
Cuculaea gigantea Conrad, 1830 † (original description)
Fusus rusticus Conrad, 1830 † accepted as Urosalpinx rusticus (Conrad, 1830) † (original description)
Mactra ponderosa Conrad, 1830 † accepted as Mactra subponderosa A. d'Orbigny, 1852 † (original description)
Marginella denticulata Conrad, 1830 † (original description)
Monodonta glandula Conrad, 1830 † (original description)
Murex acuticosta Conrad, 1830 † (original description)
Nassa quadrata Conrad, 1830 † (original description)
Natica fragilis Conrad, 1830 † (original description)
Pleurotoma catenata Conrad, 1830 † accepted as Pleurotoma conradi Deshayes, 1865 † (original description)
Pleurotoma communis Conrad, 1830 † accepted as Hemipleurotoma communis (Conrad, 1830) † (original description)
Pleurotoma dissimilis Conrad, 1830 † accepted as Chesaclava dissimilis (Conrad, 1830) † (original description)
Pleurotoma gracilis Conrad, 1830 † accepted as Sediliopsis gracilis (Conrad, 1830) † (original description)
Pleurotoma limatula Conrad, 1830 † accepted as Drillia limatula (Conrad, 1830) † (original description)
Pleurotoma parva Conrad, 1830 † (original description)
Pleurotoma rotifera Conrad, 1830 † (original description)
Pyrula sulcosa Conrad, 1830 † accepted as Lirosoma sulcosa (Conrad, 1830) † (original description)
Terebra simplex Conrad, 1830 † accepted as Laevihastula simplex (Conrad, 1830) † (original description)
Trochus humilis Conrad, 1830 † (original description)
Trochus reclusus Conrad, 1830 † (original description)
Turritella laqueata Conrad, 1830 † accepted as Turbonilla nivea (W. Stimpson, 1851) (original description)
Turritella mortoni Conrad, 1830 † accepted as Kapalmerella mortoni (Conrad, 1830) † (original description)
Turritella variabilis Conrad, 1830 † accepted as Turritella subvariabilis A. d'Orbigny, 1852 † (original description)
Venericardia blandingeri Conrad, 1830 † (original description)
Voluta solitaria Conrad, 1830 † accepted as Scaphellopsis solitaria (Conrad, 1830) † (original description)

Maryland for Acteon melanoides Conrad, 1830 † 
Maryland for Acteon ovoides Conrad, 1830 † 
Maryland for Cancellaria lunata Conrad, 1830 † 
Maryland for Cassis caelata Conrad, 1830 † 
Maryland for Crassatella alaeformis Conrad, 1830 † 
Maryland for Cuculaea gigantea Conrad, 1830 † 
Maryland for Fusus rusticus Conrad, 1830 † 
Maryland for Mactra ponderosa Conrad, 1830 † 
Maryland for Monodonta glandula Conrad, 1830 † 
Maryland for Murex acuticosta Conrad, 1830 † 
Maryland for Nassa quadrata Conrad, 1830 † 
Maryland for Natica fragilis Conrad, 1830 † 
Maryland for Pleurotoma gracilis Conrad, 1830 † 
Maryland for Pleurotoma limatula Conrad, 1830 † 
Maryland for Pleurotoma parva Conrad, 1830 † 
Maryland for Pleurotoma rotifera Conrad, 1830 † 
Maryland for Pyrula sulcosa Conrad, 1830 † 
Maryland for Terebra simplex Conrad, 1830 † 
Maryland for Trochus humilis Conrad, 1830 † 
Maryland for Trochus reclusus Conrad, 1830 † 
Maryland for Turritella laqueata Conrad, 1830 † 
Maryland for Turritella mortoni Conrad, 1830 † 
Maryland for Turritella variabilis Conrad, 1830 † 
Maryland for Venericardia blandingeri Conrad, 1830 † 
Maryland for Voluta solitaria Conrad, 1830 † 

 Homonymy

 for Nassa quadrata Marrat, 1880

Invalid: junior homonym of Nassa quadrata Conrad, 1830 [details]

 Homonymy

 for Pleurotoma (Drillia) parva E. A. Smith, 1888

Invalid: junior homonym of Pleurotoma parva Conrad, 1830 [details]