| Citation | Gotshall, D.W., 2005 Guide to marine invertebrates: Alaska to Baja California, 2nd ed. (revised). Sea Challengers. 117 p. |
| Ref. | 865 Gotshall, D.W., 2005 |
| Page | 19 |
| Named Used as Valid | Sigmadocia edaphus |
| Locality | |
| Distribution | British Columbia to Gulf of California. |