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Plum Island, Massachusetts, USA
latitude: 42.8162
longitude: -70.813904
Precision of location: Gauged from chart or map
Site Named Here: By name of island, bay, strait, lake, river, or stream, etc., named in source publication
| Coelogynopora juxtaforcipis | late 1960 s | sorted coarse sand | common on the beaches of Plum Island. | |
| Coelogynopora poaceaglandis | late 1960 s | AMNH No. 933 | ||
| Cirrifera xanthoderma | late 1960 s | spotty distribution, occurs in abundance where the dominant sand particle size is between 0.5 and 1.0 mm. |