sentences:  He became "Capitaine de vaisseau" on 6 January 1834, and accomplished a circumnavigation between 1836 and 1839 on the frigate "Vénus".Also on board were the hydrographer Urbain Dortet of Tessan, the doctor-naturalist Adolphe Simon Neboux, and the surgeon Charles René Augustin Léclancher.During this voyage the Marquesas were explored.