| Reference no. | Description | year | Name used | Page |
|---|---|---|---|---|
| 107282 | John, D.M. and R.F. Al-Thani 2014 Benthic marine algae of the Arabian Gulf: a critical review and analysis of distribution and diversity patterns. Nova Hedwigia 98(3-4):341-392. | 2014 | Caulacanthus ustulatus | --> |
| 3477 | MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php | 2050 | Caulacanthus ustulatus | --> |