| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Kristineberg, Sweden, NE Atlantic | 4 | July-October 1965 | type locality | 4 m | detritus-rich fine sand | Sterrer, W. (1969): | ||
| B | List on Sylt, Germany, NE Atlantic | 11 | Oct 1969-Oct 1970 | 0 m | medium sand | Müller, U. and Ax, P. (1971): | |||
| C | Wrightsville Beach, NC, NW Atlantic | 6 | 10 Oct 1968 | intertidal | fine sand with detritus, 2.5-5 cm below sand surface | sample 61 | Sterrer, W. (1998): 56-57 |