Overlapping markers can be separated by clicking on them.
Hovering the cursor over a marker will show the site's name.
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 | Gullmaren, Fiskebackskil (Fiskebäckskil), western Sweden | prior to 1948 | mud | Luther identified this one specimen as P. cochlear. | Luther A (1948) from Hartog 1966 (citation)- p. 145 |