 Castalia ambigua quadrilatera Orbigny, 1835 |  Castalia psammoica (Orbigny, 1835) |  Diplodon burrowghianus (Lea, 1859) |
 Diplodon delodontus (Lamarck, 1819) |  Diplodon delodontus firmus (Lea, 1856) |  Diplodon delodontus wymanii (Lea, 1860) |
 Diplodon parallelipipedon (Lea, 1834) |  Diplodon paranensis (Lea, 1834) |  Diplodon paranensis funebralis (Lea, 1834) |
 Diplodon patagonicus Orbigny, 1835 |  Rhipidodonta burroughiana wheatleyanus (Lea, 1856) |  Rhipidodonta charruana faba (Orbigny, 1835) |
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