| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Sandy beach on eastern shore of Sylt. Litoralstation (old littoral station), Biological Institute Helgoland, Biologische Anstalt Helgoland (BAH), List, Sylt | 323 | 1967 | type locality | Sylt. List. Sandwatt vor der Litoralstation der Biologischen Anstalt Helgoland. | Schilke K (1969): 298 | |||
| B | List, Litoralstation der Biologischen Anstalt Helgoland (12), Sylt, Germany | 6620 | 1966-1968 | Sandwatt | Schilke K (1970): 234 |