- Class: Minerve - 6 boats of 1930-36
- Displacement: 673 (surface); 870 (submerged) tons
- Dimensions: 223'5" x 18'4" x 13'1"
- Machinery: 2 Vickers-Normand diesels, 2 electric motors: H.P. 1,800/1,200 = 14/9 knots
- Armament: 1-75mm, 2-13.2mm AA guns; 6-550mm internal TT: 4 forward, 2 aft + 3-400mm external TT in traversing mount
- Complement: 42
- Builder: Chantiers et Ateliers Augustin Normand, Le Havre
- Laid down: 8 Jun 1932
- Launched: 15 Sep 1935
- Commissioned: 20 Sep 1937
- Notes: Junon operated from Oran and Casablanca early in the war before returning to France in Mar 1940 for refitting. Junon and sister Minerve escaped to Plymouth in Jun 1940 before the French surrender, where they were boarded by the British on 9 Jul and handed over to the Free French Naval Forces on 27 Jul. Junon operated in the Bay of Biscay and along the Norwegian coast during 1941-42. After a long refit, she operated in the Mediterranean in 1944, before going into reserve at Oran. Postwar she was refitted at Brest and recommissioned to serve as a training vessel at Brest and at Toulon until decommissioning in 1954.
Sister Venus was scuttled at Toulon and Ceres and Pallas at Oran on 9 Nov 1942 when the Germans overran Vichy. Iris escaped to Barcelona and was interned for the remainder of the war.