Proales syltensis Tzschaschel, 1978

Two specimens of this species were found in sublittoral psammon from both the Costa Blanca and the Côte d’Azur, at 250 and 50 m from the shoreline, 20 and 22 m deep; June, August; water temperature 17 and 25 °C. Proales syltensis was so far only recorded from its type locality, the eulittoral of a semi lotic beach at the island of Sylt, Germany, North Sea (Tzschaschel 1979, 1980, 1983).