- Japanese: 豊瑞丸 (Houzui maru)
The Hôzui-maru was a steel steamship imported by Satsuma han in 1864, via Nagasaki, through the assistance of British merchant Thomas Glover. Originally named the Number One, it was renamed Hôzui-maru by Satsuma.
The ship was equipped with an internal steam engine of 105 horsepower. It was not armed with any cannon.
- "豊瑞丸【薩摩藩 輸送船 幕末軍艦】," 日本の歴史ガイド～日本のお城 城跡 史跡 幕末～.
- Yonami Takeo 与並岳生, Shô Tai ô, Ryûkyû shobun 尚泰王・琉球処分, vol 3 (下), Naha: Shinsei shuppan (2009), 30.
- "汽船豊瑞丸沈没死者追悼紀念碑 in 能福寺 on 2013-1-4," blog post, CHIKU-CHANの神戸・岩国情報（散策とグルメ）, 26 Jan 2016.