Acanus Agassiz, 1834 (original description)
Achilleum Münster, 1834 (original description)
Acrogaster Agassiz, 1834 † (original description)
Archaeus Agassiz, 1834 † (original description)
Dercetis Münster & Agassiz, 1834 † (original description)
Dracosaurus Münster, 1834 † (original description)
Halecoides Agassiz, 1834 (original description)
Isticus Münster, 1834 † accepted as Istieus Agassiz, 1839 † (original description)
Macrosemius Agassiz, 1834 † (original description)
Nothosaurus Münster, 1834 † (original description)
Ophiopsis Agassiz, 1834 † (original description)
Osmeroides Agassiz, 1834 † (original description)
Palimphyes Agassiz, 1834 † (original description)
Podocys Agassiz, 1834 † (original description)
Propterus Agassiz, 1834 † (original description)
Undina Münster, 1834 † (original description)