more than 1000 BRT:
| Name | Launched // Comm. | Builder | Displacement, t | Dimensions, m | Speed, kts | Machinery, Fuel, Power, t | Armament | Fate |
| Bengasi (ex-Derna) | 1904 // 8.1916 | Burmeister & Wain, København, Denmark | 3570 | 87.4x11.2 | 13.5 | 1VTE, 2026 | 2x1-76/40, mines | discarded 11.1925 |
100 - 1000 t
| Betta N.3 (1891, 580, 1-76/40, mines, 1890s-1920?) |
Project history: Former merchant vessels converted to minelayers.
Modernizations: None.
Naval service: No significant events.