| Country | Year | Collector | Identifier | Catalog No. | Depth (m) | Locality | Source |
| Denmark | no year | 8 - 20 | Off Frederikshavn. | SLB | |||
| Denmark | no year | 2 - 10 | Off Dokkedal, off entrance to Limfjorden,. | SLB | |||
| Denmark | no year | USNM | Limfjorden. | SLB | |||
| Denmark | no year | SE of Romo. | SLB | ||||
| Netherlands | 1963 | W.T. Wolff | USNM | Province of Zuid-Holland, Isle of Goerce-Overflakkee. | SLB | ||
| Sweden | 1864 | F.A. Smitt and Hj. Widegren | 4 - 110 | Off south and southeast of Sweden and Gotland. | SLB | ||
| Sweden | 1927 | O. Neybelin | USNM | 165 - 180 | SE of Gotska Sandon. | SLB |
