| Displacement: | 771t |
| Dimensions: | 164ft 1in wl x 26ft 3in mld, 26ft 10in ext x 10ft 11in mean and max. Depth 10ft 1in |
| Same, meters: | 50.00 x 8.00, 8.18 x 3.33m. 3.08m |
| Machinery: | 160nhp (Hallette) |
| Hull material: | Wood |
| Armament: | 2-16cm shell |
| Complement: | 100 |
| Name | Builder | Laid down | Launched | Commiss. | Fate |
| SESOSTRIS | Cherbourg | (?) | (1835) | 11.1.52 | Stk. 25.4.61 |
| Displacement: | 290t |
| Dimensions: | 134ft 6in wl, 137ft 2in deck x 19ft 8in mld x 7ft 5in mean, 7ft 8in max. |
| Same, meters: | 41.00, 41.80 x 6.00 x 2.27, 2.34m |
| Machinery: | 150nhp (Schneider) |
| Hull material: | Iron (?) |
| Armament: | (1856) 2-12cm bronze shell |
| Complement: | 64 |
| Name | Builder | Laid down | Launched | Commiss. | Fate |
| ANTILOPE | Chaigneau | (?) | (1846) | 10.2.56 | Lost 15.12.58 |
| Displacement: | 334t |
| Dimensions: | 130ft 7in wl, 133ft 6in deck x 20ft 4in wl, 20ft 8in max x 7ft 10in mean, 7ft 10in max. |
| Same, meters: | 39.80, 40.70 x 6.20, 6.30 x 2.38, 2.40m |
| Machinery: | 150nhp (Schneider). Coal 25t |
| Hull material: | Iron |
| Armament: | (1856) 2-12p carronades |
| Complement: | 64 |
| Name | Builder | Laid down | Launched | Commiss. | Fate |
| CHAMOIS | Courau/ Arman | (?) | (1846) | 20.4.56 | Stk. 15.11.78 |