![[Small Petalostegus bicornis]](petabic.gif)
Petalostegus bicornisType species: Catenaria bicornis Busk, 1884
This genus includes the species:
| Petalostegus bicornis | (Busk, 1884) | Recent | South Pacific |
| Petalostegus harmeri | Gordon & d'Hondt 1991 | Recent | New Caledonia |
| Petalostegus pseudospinosus | Gordon 1993 | Recent | New Caledonia |
| Petalostegus scopulus | Gordon & d'Hondt 1991 | Recent | New Caledonia |
| Petalostegus spinosus | Powell 1967 | Recent | New Zealand, New Caledonia |
| Petalostegus tenuis | (Maplestone, 1899) | Miocene | Australia (Vic.) |
| Petalostegus trimorphus | Gordon & d'Hondt 1991 | Recent | New Zealand |
| Petalostegus vexillum | Gordon & d'Hondt 1991 | Recent | New Caledonia |
Harmer notebook - entry for Petalostegus
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