First record of the sea slug Stylocheilus striatus (Quoy & Gaimard, 1825) (Anaspidea, Aplysiidae) and swarming behavior for Bazaruto Archipelago, Mozambique with the first record of Pleurobranchus forskalii Rüppel & Leuckart, 1828 (Nudipleura, Pleurobranchidae) for Bazaruto Island (Gastropoda, Heterobranchia)

Abstract

Two heterobranch species, Stylocheilus striatus (Quoy & Gaimard, 1825) (Anaspidea, Aplysiidae) and Pleurobranchus forskalii Rüppel & Leuckart, 1828 (Nudipleura, Pleurobranchidae) are reported for the first time for Bazaruto Island, Mozambique. Swarming behavior of Stylocheilus striatus, which was previously described for other localities, was also observed for the first time in the Bazaruto Archipelago. The sea slugs were photographed in situ and identified in sync with their species descriptions, photographic databases and the current literature.