| Reference no. | HELCOM, 2013 |
| Ecosystem | Baltic Sea |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | HELCOM Red List: Near Threatened (Ref. 95556). Known from Fehmarnbelt, western Baltic Sea (Ref. 96045). Also in Great Belt, Kiel Bay, and Arkona Basin (Ref. 128574). |