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| No. | Valid Name | Author | English Name |
| 1. | Arcos decoris | Briggs, 1969 | Elegant clingfish |
| 2. | Arcos erythrops | (Jordan & Gilbert, 1882) | Rockwall clingfish |
| 3. | Arcos nudus | (Linnaeus, 1758) | Padded clingfish |
| 4. | Arcos poecilophthalmos | (Jenyns, 1842) | Galapagos clingfish |
| 5. | Arcos rhodospilus | (Günther, 1864) | Rock clingfish |