map| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | north east wall (Nordostmauer), Helgoland Island, Germany | 608map | Oct 1964 | type locality | 5 m | fine sand | Dorjes J (1968): 312; see also biogeographic summary on this and other German Bay species in Dorjes J 1968 (citation)- 78-115. |