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Part of the fleet of Enomoto Takeaki off Shinagawa. From right to left: Kaiten, Kaiyō, Kanrin, Chōgei, Mikaho. The Banryō and Chiyodagata are absent. 1868 photograph.

Mikaho (美嘉保) was a small steam transportation warship belonging to the Navy of the Bakufu around 1860.

Vice Admiral Enomoto Takeaki, vice-commander of the Navy, refusing to remit his fleet to the new government and left Shinagawa on August 20, 1868, with four steam warships ( Kaiyō, Kaiten, Banryū, Chiyodagata) and four steam transports ( Kanrin, Mikaho, Shinsoku, Chōgei) as well as 2,000 members of the Navy, 36 members of the "Yugekitai" (reaction force) headed by Iba Hachiro, several officials of the former Bakufu government such as the vice-commander in chief of the Army Matsudaira Taro, Nakajima Saburosuke, and members of the French Military Mission to Japan, headed by Jules Brunet.

On August 21, the fleet encountered a typhoon off Choshi, in which the Mikaho was lost and the Kanrin, heavily damaged, forced to rally the coast, where she was captured in Shimizu.