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.)
| Scroll through list of sites as necessary. | site | collection date | depth | substrate | salin | locality kind | comments | reference |
|---|---|---|---|---|---|---|---|---|
| A | Swampscott, Massachusetts, USA | 1972 | sorted coarse sand | occurs in well sorted coarse sand. Collected by Tor Karling at Preston Beach. | Riser NW (1981) 141 | |||
| B | Forty Steps Beach, Nahant, Massachusetts, USA | late 1960 s | sorted coarse sand | occurs in well sorted coarse sand. | Riser NW (1981) 140 | |||
| C | Plum Island, Massachusetts, USA | late 1960 s | sorted coarse sand | common on the beaches of Plum Island. | Riser NW (1981) 141 | |||
| D | Dionis Beach, Nantucket Island, Massachusetts, USA | Dec 1976 | upper intertidal | sorted coarse sand | type locality | found in dense populations in the pre-impact study following the Argo Merchant Oil Spill (Dec 1976) off Nantucket. Fully ripe individuals. | Riser NW (1981) 141 | |