| Myostomella pulchella Riedl, 1954 | Aug 29 - Sep 21, 1950 |  |  | 14 individuals. | 
| Westbladiella falcifera Riedl, 1954 | Aug 29 - Sep 21, 1950 |  |  | 1 individual. | 
| Westbladiella angulifera Riedl, 1954 | Aug 29 - Sep 21, 1950 | 0-3 m |  | samples at ebb tide and at depth, with Alge, Halopteris scoparia, and Padina pavonia. | 
| Lioniella petiti Riedl, 1954 | Aug 29 - Sep 21, 1950 |  |  | 33 individuals. | 
| Microstomum melanophthalmum Steinböck, 1933 | 1952 |  |  | marine caves. | 
| Vejdovskya pellucida (Schultze, 1851) | 1956 or earlier |  |  |  | 
| Calviria banyulensis Martens & Curini-Galletti, 1993 | Oct 1987 | 6 m |  | coarse sediment in front of the Laboratoire Arago. | 
| Cystiplex axi Karling, 1964 | 1964 or earlier | 4-5 m | coarse sand | Französische Mittelmeer-Küste bei Banyul-sur-Mer. (Ax) |