map| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Garten, Helgoland Island, Germany | 711map | Aug 1963 | type locality | 5 m | shell sand mix | museum specimen number: SMF 3462 | Dorjes J (1968): 437; also biogeography and ecology on this and other German Bay species in (citation)- 78-115. |