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Clicking on a marker will show information available about the collection site. (Compare with corresponding letter in table.)
| site | collection date | depth | substrate | salin | locality kind | comments | reference | |
|---|---|---|---|---|---|---|---|---|
| A | West flatt (Westwatt, Westwattes), Helgoland Island, Germany | Aug 1963 | coarse shell, gravel | type locality | museum specimen number: SMF 3200-10; cross gully (Querrinnen) | Dorjes J (1968) 271; also biogeography and ecology on this and other German Bay species in (citation)- 78-115. |