Rubis was one of six Émeraude-class submarines built for the French Navy in the first decade of the 20th century.
The Émeraude-class submarines consisted of six submarines built for the French Navy during the first decade of the 20th century. One boat was sunk and another captured during the First World War and the survivors were scrapped after the war.
French submarine Fresnel (Q65) one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
French submarine Monge (Q67) was one of 18 Pluviôse-class submarines built for the French Navy in the first decade in the 20th century.
French submarine Cugnot (Q76) was one of 18 Pluviôse-class submarines built for the French Navy during the first decade of the 20th century.
Saphir was one of six Émeraude-class submarines built for the French Navy in the first decade of the 20th century.
Topaze was one of six Émeraude-class submarines built for the French Navy in the first decade of the 20th century.
Opale was one of six Émeraude-class submarines built for the French Navy in the first decade of the 20th century.
Turquoise was one of six Émeraude-class submarines built for the French Navy in the first decade of the 20th century.
Émeraude was the lead boat of her class of six submarines built for the French Navy in the first decade of the 20th century.
The Circé-class submarines consisted of a pair of submarines built for the French Navy during the first decade of the 20th century. One boat was sunk in a collision before the First World War and the other was torpedoed and sunk by a German submarine in the last year of the war.
Prairial was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century. During World War I, Priarial collided with the British steamer Tropic in the English Channel off Le Havre, France, and sank with the loss of 19 of her 26 crew.
Floréal was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Messidor was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Papin was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Watt was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Berthelot was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Gay-Lussac was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Giffard was one of 18 Pluviôse-class submarines built for the French Navy in the first decade of the 20th century.
Amiral Bourgois was one of four experimental submarines ordered for the French Navy in 1906. Each boat was built to a different design and Amiral Bourgois was intended to test a novel powerplant. The experimental diesel engines took over six years to build and greatly delayed the boat's completion until 1913. Although engine problems plagued the submarine throughout her service, she was commissioned shortly after the start of the First World War in 1914, but never made an operational patrol. Amiral Bourgois was under repair when the war ended in 1918, but the work was cancelled shortly afterwards. The boat was struck the following year and offered for sale in 1920. There were no offers and she was used for torpedo testing in 1924–1926. The submarine was sold for scrap in 1927.
French Navy 
