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| No. | Valid Name | Author | English Name |
| 1. | Sunagocia arenicola | (Schultz, 1966) | Broadhead flathead |
| 2. | Sunagocia carbunculus | (Valenciennes, 1833) | Papillose flathead |
| 3. | Sunagocia omanensis | Knapp & Randall, 2013 | |
| 4. | Sunagocia otaitensis | (Cuvier, 1829) | Fringelip flathead |
| 5. | Sunagocia sainsburyi | Knapp & Imamura, 2004 | Sainsbury's flathead |