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| No. | Valid Name | Author | English Name |
| 1. | Lactoria cornuta | (Linnaeus, 1758) | Longhorn cowfish |
| 2. | Lactoria diaphana | (Bloch & Schneider, 1801) | Roundbelly cowfish |
| 3. | Lactoria fornasini | (Bianconi, 1846) | Thornback cowfish |
| 4. | Lactoria paschae | (Rendahl, 1921) |