Anomia sellaeformis Conrad, 1858 † (original description)
Aporrhais decemlirata Conrad, 1858 † accepted as Graciliala decemlirata (Conrad, 1858) † (original description)
Bullopsis Conrad, 1858 † (original description)
Bullopsis cretacea Conrad, 1858 † (original description)
Cardium (Laevicardium) spillmani Conrad, 1858 † accepted as Protocardia (Pachycardium) spillmani (Conrad, 1858) † represented as Protocardia spillmani (Conrad, 1858) † (original description)
Cardium ripleyense Conrad, 1858 † (original description)
Cardium tippanum Conrad, 1858 † (original description)
Chemnitzia distans Conrad, 1858 † (original description)
Chemnitzia interrupta Conrad, 1858 † (original description)
Cibota lintea Conrad, 1858 † (original description)
Conus canalis Conrad, 1858 † accepted as Liopeplum canalis (Conrad, 1858) † (original description)
Crassatella ripleyana Conrad, 1858 † accepted as Crassatella vadosa S. G. Morton, 1834 † (original description)
Ctenoides acutilineata Conrad, 1858 † accepted as Lima acutilineata (Conrad, 1858) † (original description)
Cucullaea capax Conrad, 1858 † accepted as Idonearca capax (Conrad, 1858) † (original description)
Cucullaea tippana Conrad, 1858 † accepted as Idonearca capax (Conrad, 1858) † (original description)
Dosinia densata Conrad, 1858 † (original description)
Dreissena tippana Conrad, 1858 † accepted as Lycettia tippana (Conrad, 1858) † (original description)
Drillia novemcostata Conrad, 1858 † (original description)
Drillia tippana Conrad, 1858 † (original description)
Exogyra interrupta Conrad, 1858 † (original description)
Ficus octoliratus Conrad, 1858 † (original description)
Fusus (Afer) Conrad, 1858 accepted as Afer Conrad, 1858 (original description)
Fusus (Afer) belliliratus Conrad, 1858 † accepted as Deussenia bellalirata (Conrad, 1858) † (original description)
Fusus novemliratus Conrad, 1858 † (original description)
Gervillia ensiformis Conrad, 1858 † accepted as Gervilliopsis ensiformis (Conrad, 1858) † (original description)
Harpago tippanus Conrad, 1858 † accepted as Pterocerella tippana (Conrad, 1858) † (original description)
Inoceramus argenteus Conrad, 1858 † accepted as Tenuipteria argentea (Conrad, 1858) † (original description)
Inoceramus costellatus Conrad, 1858 † (original description)
Legumen Conrad, 1858 † (original description)
Legumen appressus Conrad, 1858 † (original description)
Legumen ellipticus Conrad, 1858 † accepted as Legumen ellipticum Conrad, 1858 † (original description)
Meretrix tippana Conrad, 1858 † (original description)
Natica (Lunatia) rectilabrum Conrad, 1858 † accepted as Euspira rectilabrum (Conrad, 1858) † (original description)
Nucula percrassa Conrad, 1858 † (original description)
Opis bella Conrad, 1858 † (original description)
Opis bicarinata Conrad, 1858 † (original description)
Ostrea confragosa Conrad, 1858 † (original description)
Ostrea denticulifera Conrad, 1858 † (original description)
Ostrea peculiaris Conrad, 1858 † (original description)
Papyridea bella Conrad, 1858 † (original description)
Periploma applicata Conrad, 1858 † (original description)
Pholadomya tippana Conrad, 1858 † (original description)
Pinna laqueata Conrad, 1858 † (original description)
Pulvinites argentea Conrad, 1858 † (original description)
Pyrifusus Conrad, 1858 † (original description)
Pyrifusus subdensatus Conrad, 1858 † (original description)
Rapa supraplicata Conrad, 1858 † accepted as Gyrodes supraplicatus (Conrad, 1858) † (original description)
Rimella curviliratus Conrad, 1858 † (original description)
Siliquaria biplicata Conrad, 1858 † accepted as Leptosolen biplicatus (Conrad, 1858) † (original description)
Solidulus [sic] † accepted as Solidula Fischer von Waldheim, 1807 accepted as Pupa Röding, 1798 (basis of record)
Solidulus linteus Conrad, 1858 † (original description)
Strombus densatus Conrad, 1858 † accepted as Pugnellus densatus (Conrad, 1858) † (original description)
Tellina ripleyana Conrad, 1858 † (original description)
Trichotropis cancellaria Conrad, 1858 † accepted as Paladmete cancellaria (Conrad, 1858) † (original description)
Turris ripleyana Conrad, 1858 † accepted as Beretra ripleyana (Conrad, 1858) † (original description)
Turritella altilis Conrad, 1858 † (original description)
Turritella tippana Conrad, 1858 † (original description)
Volutilithes cretacea Conrad, 1858 † accepted as Liopeplum cretaceum (Conrad, 1858) † (original description)

Mississippi for Anomia sellaeformis Conrad, 1858 † 
Mississippi for Bullopsis cretacea Conrad, 1858 † 
Mississippi for Cardium (Laevicardium) spillmani Conrad, 1858 † 
Mississippi for Cardium ripleyense Conrad, 1858 † 
Mississippi for Cardium tippanum Conrad, 1858 † 
Mississippi for Chemnitzia distans Conrad, 1858 † 
Mississippi for Chemnitzia interrupta Conrad, 1858 † 
Mississippi for Cibota lintea Conrad, 1858 † 
Mississippi for Conus canalis Conrad, 1858 † 
Mississippi for Crassatella ripleyana Conrad, 1858 † 
Mississippi for Ctenoides acutilineata Conrad, 1858 † 
Mississippi for Cucullaea capax Conrad, 1858 † 
Mississippi for Cucullaea tippana Conrad, 1858 † 
Mississippi for Dosinia densata Conrad, 1858 † 
Mississippi for Dreissena tippana Conrad, 1858 † 
Mississippi for Drillia novemcostata Conrad, 1858 † 
Mississippi for Drillia tippana Conrad, 1858 † 
Mississippi for Exogyra interrupta Conrad, 1858 † 
Mississippi for Ficus octoliratus Conrad, 1858 † 
Mississippi for Fusus (Afer) belliliratus Conrad, 1858 † 
Mississippi for Fusus novemliratus Conrad, 1858 † 
Mississippi for Gervillia ensiformis Conrad, 1858 † 
Mississippi for Harpago tippanus Conrad, 1858 † 
Mississippi for Inoceramus argenteus Conrad, 1858 † 
Mississippi for Inoceramus costellatus Conrad, 1858 † 
Mississippi for Legumen appressus Conrad, 1858 † 
Mississippi for Meretrix tippana Conrad, 1858 † 
Mississippi for Natica (Lunatia) rectilabrum Conrad, 1858 † 
Mississippi for Nucula percrassa Conrad, 1858 † 
Mississippi for Opis bella Conrad, 1858 † 
Mississippi for Opis bicarinata Conrad, 1858 † 
Mississippi for Ostrea confragosa Conrad, 1858 † 
Mississippi for Ostrea denticulifera Conrad, 1858 † 
Mississippi for Ostrea peculiaris Conrad, 1858 † 
Mississippi for Papyridea bella Conrad, 1858 † 
Mississippi for Periploma applicata Conrad, 1858 † 
Mississippi for Pholadomya tippana Conrad, 1858 † 
Mississippi for Pinna laqueata Conrad, 1858 † 
Mississippi for Pulvinites argentea Conrad, 1858 † 
Mississippi for Pyrifusus subdensatus Conrad, 1858 † 
Mississippi for Rapa supraplicata Conrad, 1858 † 
Mississippi for Rimella curviliratus Conrad, 1858 † 
Mississippi for Siliquaria biplicata Conrad, 1858 † 
Mississippi for Solidulus linteus Conrad, 1858 † 
Mississippi for Tellina ripleyana Conrad, 1858 † 
Mississippi for Trichotropis cancellaria Conrad, 1858 † 
Mississippi for Turritella altilis Conrad, 1858 † 
Mississippi for Turritella tippana Conrad, 1858 † 
Mississippi for Volutilithes cretacea Conrad, 1858 †