map| site | site # (info) | collection date | kind | depth | substrate | salin | comments | reference | |
|---|---|---|---|---|---|---|---|---|---|
| A | off coast Beaufort, North Carolina, USA | 2566map | May 1970 | type locality | 20 m | heterogeneous coarse sand, fairly clean | specimens obtained there showed seveal differences in measurement and probably represent a different geographic form. | Rieger RM (1974): 58 |