| Archaphanostoma agile (Jensen, 1878) | Aug 20, 1970 | 2.5 m | stony, sand | A few specimens in sand. | 
| Trigonostomum mirabile (Pereyaslawzewa, 1892) | 26 September, 1968 |  | on Ceramium sp. | coll. SMNH by Mack-Fira | 
| Convoluta convoluta (Abildgaard, 1806) | prior to 1974 | 0.5 m | stony | from algae. | 
| Mecynostomum arenarium Ax, 1959 | prior to 1974 | 0.5-3.0 m | stony, sand | A few specimens. | 
| Macrostomum ventriflavum Pereyaslawzewa, 1892 | Aug 18, 1970 | 1 m | sand, stone |  | 
| Macrostomum peteraxi Mack-Fira, 1971 | 1974 or earlier | 2.5 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 | 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 catinosa (Beklemischev, 1927) | prior to 1974 | 0.5 m | stone zone | Rare, among algae. | 
| Monocelis lineata (Müller, 1773) | prior to 1974 | 0.5-3.0 m | sand, stone zone |  | 
| Monocelis longiceps (Duges, 1830) | prior to 1974 |  |  |  | 
| Archilina endostyla Ax, 1959 | prior to 1974 | 0.5-1.0 m | sand, stone zone | very numerous, in the sand of the stone zone. | 
| Postbursoplana fibulata Ax, 1956 | Nov 1968 |  | sand zone | two specimens, 'the Otoplana zone'. | 
| Coelogynopora sp. Mack-Fira, 1974 | Jul 31, 1969 | 2.0 m | sand zone | one immature specimen. | 
| Procerodes lobatus (Schmidt, 1862) | Aug 1, 1970 | 0.5 m | stone zone | Very numerous, among Enteromorpha and in the phreatic layeer close to the shore. | 
| Bresslauilla relicta Reisinger, 1929 | Aug 1970 | 1.0 m |  | Two specimens, in phytal. | 
|  | 1974 or earlier | 0.5-1.0 m |  | Very numerous, among plants. | 
| Hartogia pontica Mack-Fira, 1968 | 1974 or earlier | 2.5 m | stone zone | two specimens. | 
| Proxenetes angustus Ax, 1951 | Aug 16, 1970 | 1.0 m | stone | Numerous specimens, Black Sea shore, a little quiet bay. | 
| Trigonostomum mirabile (Pereyaslawzewa, 1892) | prior to 1974 | 3.0 m |  | Rare. | 
| Promesostoma bilineatum Pereyaslawzewa, 1892 | 1974 or earlier | 1.0 m | stone |  | 
| Polycystis naegelii Kölliker, 1845 | 1974 or earlier | 0.5-5.5 m | stone zone | among algae, Cystoseira and Enteromorpha. | 
| Gyratrix hermaphroditus Ehrenberg, 1831 | 1974 or earlier | 0.5-1.0 m | stony |  | 
| Utelga heinckei (Attems, 1897) | Aug 1970 | 2.0-3.0 m | stone, sand | Eight specimens, in the sand among algae. | 
| Utsurus camarguensis Brunet, 1965 | Aug 1970 | 1.0-2.0 m | stone, sand | Few specimens, in the sand under the 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 | 1.0-3.0 m |  | Numerous specimens. | 
| Cheliplana euxeinos Ax, 1959 | Oct 19, 1968 | 3.0 m | stone zone, sand | One specimen, in the sand, under the Cystoseira. | 
| Brinkmanniella palmata Karling, 1986 | prior to 1986 |  |  | sand and mud with algae. | 
| Beauchampiola mackfirae Ax, 2008 | 1975 or earlier | 0.3 m | coarse sand | Rumänien.  Küste des Schwarzes Meer (Mack-Fira 1975) in der Nähe der Station marine d'Agigea.  Grobsand des Litorals in 03 m Wassertiefe. | 
| Gieysztoria maritima Luther, 1955 |  |  |  |  |