Complementing the Atlantique, eight Falcon 50 maritime patrol aircraft are currently in service with Flottille 24F based at the Lann-Bihoué base near Lorient. Following modifications, it seems to me that the correct designation for these jets is now simply Falcon 50M.

Dassault has completed delivery of the last of 4 Falcon 50SURMAR (marine surveillance) aircraft to the French Navy in 2016. All 4 aircraft are assigned to 24 Flotille at Lann-Bihoué. The quartet have been transferred from the French Air Force VIP transport fleet and were upgraded by Dassault at Bordeaux with a Thales Ocean Master 100 search radar, as well as a new cockpit and observation windows. This SURMAR flew out of Djibouti along the Somalia coastline somewhere in between Mogadishu and the Seychelles. Behind the large window you can see an observer taking photographs of the Johan de Witt.