| Reference no. | Whitehead, P.J.P., 1985 |
| Ecosystem | North Sea |
| Status | native |
| Abundance | scarce (very unlikely) |
| Lifestage | adults |
| Regional database | |
| Remarks | Considered extirpated throughout the North Sea (Ref. 88834, 89651, 89652, 89653). Under threat or in decline in OSPAR Regions II, III, IV (Ref. 88847). |