| Dugesia gonocephala (Duges, 1830) | 1960 | | | from the running waters in the Ohrid region. |
| Phagocata ochridana (Stankovic & Komarek 1927) | prior to 1927 | | | springs and streams in the Ohrid region. |
| Fonticola ochridana Stankovic &Komarek, 1927 | prior to 1927 | | | springs and streams in the Ohrid region. |
| Phagocata ochridana (Stankovic & Komarek 1927) | prior to 1934 | littoral zone | | littoral. |
| Phagocata ochridana (Stankovic & Komarek 1927) | prior to 1955 | sublittoral and profundal zones | | littoral. |
| Phagocata stankovici (Reisinger, 1960) | prior to 1974 | 20 m | shell | several specimens from sublittoral shell, in Ohrid Bay. |
| Phagocata stankovici (Reisinger, 1960) | prior to 1974 | 67-90 m | mud | one specimen, from two samples dredged from 67 and 90 m respectively, Ohrid Bay. |
| Crenobia alpina montenigrina (Mrazek, 1904) | 1935-1937 | | | springs and streams in the Ohrid region. |
| Crenobia alpina montenigrina (Mrazek, 1904) | 1927 or earlier | | | in large spring Sum and in the outlet of Lake Ohrid, the river Drim. |
| Dendrocoelum adenodactylosum (Stankovic & Komarek, 1927) | prior to 1927 | | | Lake Ohrid and in its tributary streams and sources. Also the littoral zone of the lake. |
| Dendrocoelum maculatum (Stankovic & Komarek, 1927) | 1935-1937 | | | in the lake in shallow water near the town of Ohrid (water temperature in August, 24.7 degrees C. |
| Dendrocoelum adenodactylosum (Stankovic & Komarek, 1927) | prior to 1927 | 108 m | | profundal zone at a depth of 108 m. |
| Dendrocoelum magnum (Stankovic, 1969) | prior to 1927 | | | mature specimens only in running waterr, in springs near the monastery of Sveti Naum. Immature animals were found also in the littoral zone of the lake, but were rarer than D. maculatum. |
| Dendrocoelum magnum (Stankovic, 1969) | prior to 1955 | | | occurrence in the sublittoral zone |
| Dendrocoelum magnum (Stankovic, 1969) | 1935-1937 | | | the species occurs from the littoral zone down to the shell zone but is nowhere common. |
| Dendrocoelum lacustre (Stankovic, 1938) | prior to 1938 | 20-50 m | | sublittoral zone of the lake. |
| Dendrocoelum lychnidicum (Stankovic, 1969) | prior to 1955 | | | as an undescribed species #1 inhabiting the sublittoral zone. |
| Dendrocoelum ochridense (Stankovic & Komarek, 1927) | prior to 1927 | 40 m | | single specimen dredged. |
| Dendrocoelum ochridense (Stankovic & Komarek, 1927) | prior to 1927 | 5-120 m | | |
| Dendrocoelum ochridense (Stankovic & Komarek, 1927) | 1935-1937 | 45 m | | off Kale, below the shell zone (at about 45 m) |
| Dendrocoelum lacteum (Müller, 1773) | prior to 1927 | | | |
| Microdalyellia minima (An der Lan, 1939) | 1939 or earlier | | | Ochridasee, Limnocrene, Juli. |
| Neodendrocoelum adenodactylosum (Stankovic & Komarek, 1927) | 1927 or earlier | | | West Balkans, Lake Ochrid region. |
| Neodendrocoelum maculatum Stankovic & Komarek, 1927 | 1927 or earlier | | | West Balkans, Lake Ochrid region. |
| Neodendrocoelum ochridense Stankovic & Komarek, 1927 | 1927 or earlier | | | West Balkans, Lake Ochrid region. |
| Neodendrocoelum sanctinaumi Stankovic & Komarek, 1927 | 1927 or earlier | | | West Balkans, Lake Ochrid region. |
| Neodendrocoelum jablanicense Stankovic & Komarek, 1927 | 1927 or earlier | | | West Balkans, Lake Ochrid region. |
| Dendrocoelum sinisae Kenk, 1978 | 1978 | 1935-1937 | | This is a rather white species inhabiting the profundal zone of Lake Ohrid. |
| Typhloplana viridata (Abildgaard, 1789) | 1939 or earlier | | | Jugoslavien, Ochrida-See. |
| Strongylostoma radiatum (Müller, 1774) | 1939 or earlier | | | Jugoslavien, Ochrid-See |
| Olisthanella truncula (Schmidt, 1858) | 1939 or earlier | | | Jugoslavien: Ochridasee. |
| Prorhynchus stagnalis Schultze, 1851 | 1939 or earlier | | | Jugoslavien. |
| Macrostomum leptos An der Lan, 1939 | 1939 or earlier | | | |
| Gieysztoria pavimentata (Beklemischev, 1926) | July 1937 | 1,5 m | Fine sand and shingle | |
| Gieysztoria expedita (Hofsten N, 1907) | 1939 or earlier | | | Jugoslavien. Ochrida-See |
| Gieysztoria triquetra (Fuhrmann, 1894) | 1930 or earlier | | | Ochridasee (An der Lan 1930, Bestimmung etwas unsicher), |
| Castrella (Castrella) truncata (Abildgaard, 1789) | 1954 or earlier | | | 1 Ex. |