| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Sylt Island, western beach | 312 | June-August 1974, 1975 | type locality | Surf zone | many specimens | Faubel A (1976): 30 | ||
| B | Sylt Island (North Frisian Islands), North Sea | 313 | 1972-1975 | exposed beach slope | Faubel A (1977): 68-69, Table 1 |