|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Helgoland Islands (Helgoland Insel, Heligoland), Germany | 636 
  map | Apr 1963 | type locality | 18 m | Amphioxus sand, coarse sand |  | museum specimen numbers: SMF 3037-59; SMF 3463-65 / Amphioxus | Dorjes J (1968): 179; see also biogeographic summary on this and other German Bay species in (citation)- 78-115. | 
| B | Tonne Dune (Duene) east #1, Helgoland Island, Germany | 655 
  map | Apr 1963 |  | 15 m | fine, medium sand |  |  | Dorjes J (1968): 179; see also biogeographic summary on this and other German Bay species in (citation)- 78-115. | 
| C | Reede, Helgoland Island, Germany | 656 
  map | Apr 1963 |  | 7 m | coarse gravel fine sand mixture |  |  | Dorjes J (1968): 179; see also biogeographic summary on this and other German Bay species in (citation)- 78-115. | 
| D | Reede, Helgoland Island, Germany | 656 
  map | May 1963 |  | 6 m | stone rich medium sand |  |  | Dorjes J (1968): 179; see also biogeographic summary on this and other German Bay species in (citation)- 78-115. | 
| E | Loreley Bank, Helgoland Island, Germany | 658 
  map | May 1963 |  | 13 m | fine sand |  |  | Dorjes J (1968): 179; see also biogeographic summary on this and other German Bay species in (citation)- 78-115. | 
| F | north east wall (Nordostmauer), Helgoland Island, Germany | 608 
  map | Aug 1963 |  | 5 m | fine sand |  |  | Dorjes J (1968): 179; see also biogeographic summary on this and other German Bay species in (citation)- 78-115. | 
| G | Helgoland Islands (Helgoland Insel, Heligoland), Germany | 636 
  map | Aug 1963 | type locality | 17-18 m | coarse sand, Amphioxus sand |  |  | Dorjes J (1968): 179; see also biogeographic summary on this and other German Bay species in (citation)- 78-115. | 
| H | between Sylt and Romo (Römö), north of Ellenbogen, Sylt Island, Germany, North Sea | 3565 
  map | Apr-Sep 1982 |  | 10-20 m | medium-coarse sand |  | sublittoral sample, north of the island of Sylt, between Römö and Sylt. | Wehrenberg C, Reise K (1985): 168-170 | 
| I | between Sylt and Romo (Römö), north of Ellenbogen, Sylt Island, Germany, North Sea | 3565 
  map | Apr-Sep 1983 |  | 10-20 m | medium-coarse sand |  | sublittoral sample, north of the island of Sylt, between Römö and Sylt. | Wehrenberg C, Reise K (1985): 168-170 |