| |
site |
site # (info) |
collection date |
kind |
depth |
substrate |
salin |
comments |
reference |
| A |
Forty Steps Beach, Nahant, Massachusetts, USA |
1821
 map | late 1960 s |
|
|
sorted coarse sand |
|
occurs in well sorted coarse sand. |
Riser NW (1981): 140 |
| B |
Swampscott, Massachusetts, USA |
1822
map | 1972 |
|
|
sorted coarse sand |
|
occurs in well sorted coarse sand. Collected by Tor Karling at Preston Beach. |
Riser NW (1981): 141 |
| C |
Dionis Beach, Nantucket Island, Massachusetts, USA |
1823
map | Dec 1976 |
type locality |
upper intertidal |
sorted coarse sand |
|
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 |
| D |
Plum Island, Massachusetts, USA |
1824
map | late 1960 s |
|
|
sorted coarse sand |
|
common on the beaches of Plum Island. |
Riser NW (1981): 141 |