| Type and Name. | G | H | I | J | Battery. |
|---|---|---|---|---|---|
| In. | In. | In. | Year | ||
| Double-turreted Monitors. | |||||
| Amphitrite | 7 | 10½ | 8 | Building | IV 10-inch B.L.R. |
| Miantonomoh | 7 | 10½ | 8 | 1876 | |
| Puritan | Building | ||||
| Monadnock | 7 | 10½ | 8 | ” | |
| Terror | 7 | 10½ | 8 | ” | |
| Single-turreted Monitors. | |||||
| Ajax | 5 | 10 | 4 | 1865 | II 15-inch S.B. |
| Canonicus | 5 | 10 | 4 | 1864 | |
| Camanche | 5 | 11 | 6 | ||
| Catskill | 5 | 11 | 6 | 1863 | |
| Dictator | 6 | 15 | |||
| Jason | 5 | 11 | 6 | ||
| Lehigh | 5 | 11 | 6 | 1863 | |
| Mahopac | 5 | 10 | 4 | 1863 | |
| Manhattan | 5 | 10 | 4 | ||
| Montauk | 5 | 11 | 6 | ||
| Nahant | 5 | 11 | 6 | 1863 | |
| Nantucket | 5 | 11 | 6 | 1863 | |
| Passaic | 5 | 11 | 6 | 1862 | |
| Saugus | 5 | 10 | 4 | ||
AMPHITRITE. MIANTONOMOH. PURITAN. MONADNOCK. TERROR.
Double-turreted, low-freeboard monitor vessels. No overhang. Turrets suspended on a central spindle on the Ericsson system. Resting normally on their bases, but elevated for revolving by means of hydraulic presses. Conning tower on top of each turret. Light flying deck between the turrets, with a ventilating shaft rising just abaft the smoke-stack. Twin screws.
MIANTONOMOH.
THE FIFTEEN SINGLE-TURRETED MONITORS.
Old-type, single-turreted, low-freeboard monitors. All except the Dictator have an overhang. In some the turrets are raised by driving wedges under the spindle; in others by hydraulic presses. Conning tower on top of the turret. Laminated plating.
PASSAIC.