Cirripeds (Crustacea) from the mid-Atlantic Ridge collected by the submersible Nautile

Nine species of barnacles were dredged along the Mid-Atlantic Ridge during several cruises of the French submersible Nautile. They include the lepadomorph Glyptelasma rectum, the scalpellomorphs Scillaelepas sp., Trianguloscalpellum regium, Arcoscalpellum michelottianum, the verrucomorphs Altiverruca erecta, A. longicarinata, A. obliqua, and the balanomorph Hexelasma americanum. A new verrucomorph Newmaniverruca ferruginea sp. nov. is described. Altiverruca erecta and A. longicarinata are redescribed. All these species have a wide distribution, except A. erecta and N. ferruginea sp. nov. Based on several recent studies it now appears that Atlantic hydrothermal vents areas are not refugia for unusual relic cirripeds such as those found in the Pacific hydrothermal fields.