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 | estuaries around Norfolk, Virginia, USA | 1948 or earlier | shallow | brackish | from collection records ranging 1931 thru 1948. | Ferguson FF, Jones ER (1949) 436, 438 | ||
| B | Saint Vaast la Hougue (St. Vaast-la-Hougue), France | 1913 or earlier | type locality | Atlantic Ocean. | Graff Lvon (1913) 56 | |||
| C | Saint Vaast la Hougue (St. Vaast-la-Hougue), France | 1863 or earlier | default type | Claparede E (1863) from Ferguson 1954 (citation)- p. 141 |