Collecting site
Baltic Sea (Ostersjon, Ost-See, Ostsee, Laanemeri, Itameri, Baltyckie Morze, Baltiyskoye More, Baltijos Jura, Baltijas Jura, Balti Meri, Ostersoen, Balticum)
latitude: 57     57°0'0"N
longitude: 19     19°0'0"E
[Precision of location: gauged from chart or map] 
[Site Named Here by name of sea, gulf, or country named in source publication] 
Collected here:
| Beklemischeviella contorta (Beklemischev, 1927) | prior to 1962 |  | sand, mud | widely distributed from Kiel (Ax 1951) and Malmö to the Gulf of Finland (Luther 1962).  Baltic- limited to the mesohalinicum, also between algae and water plants or between mussels at a greater depth. | 
| Haloplanella curvistyla Luther, 1946 | 1946 or earlier |  |  |  | 
| Vortex pellucidus Schultze, 1851 | 1848 or earlier |  |  | Diese seltene, wie die vorige an der Küste der Ostsee gefundene Art könnte vielleicht mit Vortex coecus Örsted. | 
| Planaria torva (Müller, 1773) | 1961 or earlier |  |  | Luther (1961) stellt zahlreiche Funde im Raum der Ostsee zusammen. | 
| Coronhelmis multispinosus Luther, 1948 | 1960 or earlier |  |  | Ostsee. | 
| Planaria torva (Müller, 1773) | 1950 or earlier |  |  | Überhaupt häufig in der Ostsee, Verbreitungsgrenze nach Remane (1950) bei etwa 8 ‰ S. | 
| Prorhynchus stagnalis Schultze, 1851 | 1933 or earlier |  |  | Balticum (Braun 1885, Pagast & Froese). | 
| Geocentrophora sphyrocephala de Man, 1876 | 1885 or earlier |  |  | Balticum. |