Cardium abichi R. Hoernes, 1874 † accepted as Paradacna abichi (R. Hoernes, 1874) † (original description)
Cardium barboti R. Hoernes, 1874 † accepted as Replidacna barboti (R. Hoernes, 1874) † (original description)
Cardium bayerni R. Hoernes, 1874 † accepted as Chartoconcha bayerni (R. Hoernes, 1874) † (original description)
Cardium lenzi R. Hoernes, 1874 † accepted as Paradacna lenzi (R. Hoernes, 1874) † (original description)
Cardium panticapaeum R. Hoernes, 1874 † accepted as Pontalmyra panticapaeum (R. Hoernes, 1874) † (original description)
Cardium subpaucicostatum R. Hoernes, 1874 † accepted as Pontalmyra planicostata (Deshayes, 1838) † accepted as Pontalmyra verneuilli (Deshayes, 1838) † (original description)
Cardium syrmiense R. Hoernes, 1874 † accepted as Paradacna syrmiensis (R. Hoernes, 1874) † (original description)
Cardium tamanense R. Hoernes, 1874 † accepted as Pontalmyra tamanensis (R. Hoernes, 1874) † (original description)
Melania fuchsii R. Hoernes, 1874 † accepted as Odostomia fuchsii (R. Hoernes, 1874) † (original description)