| Name | Radula australis Austin |
| Authorship | Austin |
| Rank | Species |
| Placed in | Radula Dumortier |
| Citation | 1876 Bot. Gaz. 1: 32 |
| Holdings | 37 Specimens held in the Harvard University Herbaria identified as Radula australis Austin |
| Identification made in | [no date] (37) |