| Label | Id | |
|---|---|---|
| Cinglis | 1441481 | |
| Cirrophorus | 251441 | |
| Cleta | 1441483 | |
| Cobana | 354411 | |
| Colacogloea | 34419 | |
| Colaspoides | 284416 | |
| Comatulella | 1529441 | |
| Congzhengia | 2944150 | |
| Coniopterygidae | 279441 | |
| Copemetopus | 2834419 | |
| Copiapoa | 154416 | |
| Coptis | 3441 | |
| Corallidae | 44185 | |
| Coralliidae | 44185 | |
| Corallium | 44186 |