| Reference no. | Roper, C.F.E., M.J. Sweeney and C.E. Nauen, 1984 |
| Ecosystem | North Sea |
| Status | native |
| Abundance | abundant (always seen in some numbers) |
| Lifestage | adults |
| Regional database | |
| Remarks | Spawning occurs strictly from June to July (Ref. 104424). Also in Refs. 83653, 104415. |