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| No. | Valid Name | Author | English Name |
| 1. | Hemilepidotus gilberti | Jordan & Starks, 1904 | Gilbert's Irish Lord |
| 2. | Hemilepidotus hemilepidotus | (Tilesius, 1811) | Red Irish lord |
| 3. | Hemilepidotus jordani | Bean, 1881 | Yellow Irish lord |
| 4. | Hemilepidotus papilio | (Bean, 1880) | Butterfly sculpin |
| 5. | Hemilepidotus spinosus | Ayres, 1854 | Brown Irish lord |
| 6. | Hemilepidotus zapus | Gilbert & Burke, 1912 | Longfin Irish lord |