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| No. | Valid Name | Author | English Name |
| 1. | Nicholsina collettei | Schultz, 1968 | |
| 2. | Nicholsina denticulata | (Evermann & Radcliffe, 1917) | Loosetooth parrotfish |
| 3. | Nicholsina usta | (Valenciennes, 1840) | Emerald parrotfish |