| Reference no. | HELCOM, 2007 |
| Ecosystem | Baltic Sea |
| Status | native |
| Abundance | |
| Lifestage | adults |
| Regional database | |
| Remarks | Found in the Gulf of Riga, Gulf of Finland and Gulf of Bothnia. HELCOM: vulnerable (as C. balticus); considered a high priority species (Ref. 83294). |