(Quoy and Gaimard, 1833)
Cylindrical definitive nectophores with a baso-ventral extension below the ostium of the nectosac. Bifurcating canals on nectosac. Somatocyst simple in larval nectophore, but with an ascending (dorsal) and two long, branching lateral canals in the mature definitive one. Bract with relatively short dorsal canal, which may bifurcate subterminally. Left hydroecial canal not recurved distally.