| Macrostomum ventriflavum Pereyaslawzewa, 1892 | Sep 21, 1969 |  | sand of stone zone |  | 
| Macrostomum peteraxi Mack-Fira, 1971 | 1974 or earlier | 0.5 m | sand of stone zone | few specimens. | 
| Plagiostomum ponticum Pereyaslawzewa, 1892 | 1974 or earlier | 1.0 m | stone zone | numerous specimens | 
| Pseudostomum klostermanni (Graff, 1874) | prior to 1974 | 0.2-0.3 |  | 'littoral basins', among Cladophora. | 
| Pseudostomum klostermanni (Graff, 1874) | prior to 1974 | 1.0 m | stone zone | Numerous specimens, stone zone, among algae. | 
| Allostoma pallidum Beneden, 1861 | prior to 1974 | 1.0 m | stone zone | Numerous specimens, stone zone, among algae. | 
| Allostoma pallidum Beneden, 1861 | prior to 1974 | 0.2-0.3 m |  | the 'littoral basins', among Cladophora. | 
| Monocelis lineata (Müller, 1773) | prior to 1974 | 0.2-0.3 m |  | the 'littoral basins'. | 
| Monocelis longiceps (Duges, 1830) | prior to 1974 |  |  |  | 
| Archilina endostyla Ax, 1959 | prior to 1974 |  |  | in the 'littoral' basins | 
| Archilina endostyla Ax, 1959 | prior to 1974 | 0.5-1.0 m | sand, stone zone | very numerous, in the sand of the stone zone. | 
| Phaenocora typhlops (Vejdovsky, 1880) | Jun 17, 1966 |  |  | Very abundant, in a large permanent swamp with vegetation, close to the beach. | 
| Hartogia pontica Mack-Fira, 1968 | Sep 21, 1969 | 0.5 m | stone zone | one specimen. | 
| Promesostoma bilineatum Pereyaslawzewa, 1892 | 1974 or earlier |  |  | numerous specimens, 'littoral basins'. | 
| Polycystis naegelii Kölliker, 1845 | 1974 or earlier | 1.0 m |  | Very numerous, among algae. | 
| Itaipusa karlingi Mack-Fira, 1968 | 1974 or earlier | 0.5-3.0 m | stone, sand | Numerous, in the sand under the algae. | 
| Torkarlingia euxinica Mack-Fira, 1971 | 1974 or earlier | 0.5 m | stone |  |