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CCDB → Bryophytes → Riellaceae → Riella
| Taxon name | Status | Median (n) |
| Riella affinis M. Howe & Underw. | Accepted | 9 |
| Riella helicophylla Bory & Mont. | Accepted | 9 |
| Riella notarisii (Mont.) Mont. | Accepted | 9 |
| Riella parisii Gottsche | Accepted | 8 |
| Riella purpureospora F. H. Wigg. | Unresolved | 9 |