| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | Thimble Island, Connecticut, USA | 1728 | type locality | 3-5 m | among red algae in 3-5 meters, off Thimble Island, Connecticut, USA | Verrill AE (1873): ; from Prudhoe S (citation)- page 38 | |||
| B | Saint Vincent Bar, Apalachicola Bay, Florida, USA | 1482 | 1935 | listed by Hyman 1954 as described by Pearse | Hyman LH (1954): 301 |