|  | site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | 
| A | Swedish West Coast, mouth of Gullmarsfjord (Gullmarsfjorden), Kristineberg Marine Research Station, Sweden | 55 
  map |  | type locality | 20-30 m | soft bottom |  | Lectotype No. 2494, Swedish Museum of Natural History | Dorjes J (1968): ; from Dorjes & Karling (citation)- p 177 | 
| B | Tiefe Rinne, Helgoland Island, Germany | 610 
  map | Aug 1963 |  |  | sludge |  |  | Dorjes J (1968): 165; also biogeography and ecology on this and other German Bay species in (citation)- 78-115. | 
| C | north harbor (Nordhafen), Helgoland Island, Germany | 650 
  map | Aug 1963 |  |  | mud, coarse sand |  |  | Dorjes J (1968): 165; also biogeography and ecology on this and other German Bay species in (citation)- 78-115. | 
| D | Gullmarfjord (Blabergsholem, Blåbergsholmen, Blåbärsholmen, Blabarsholmen), western Sweden | 856 
  map | prior to 1946 | default type | 30 m | mud, clay (Schlamm-Lehmboden) |  | no type locality specified, | Westblad E (1946): 40 | 
| E | Gullmarfjord, Bokevik (Bökevik, Bökovik), Sweden | 862 
  map | prior to 1946 | default type | 15-20 m | strongly mixed sand, clay (stark sandvermischtem Lehmboden) |  | no type locality specified, | Westblad E (1946): 40 | 
| F | Gullmarfjord (Bredungen Gullmarsvik), by Blabergsholmen (Blåbergsholmen), western Sweden | 53 
  map |  |  |  |  |  |  | Dorjes J (1968): |