| Citation | M'Intosh, W.C., 1885 Report on the Annelida Polychaeta dredged H.M.S. Challenger during the years 1873-76. In Report of the scientific results of the voyage of H.M.S. Challenger during the years 1873-76: a summary of the scientific results, Zoology 12:1-590. |
| Ref. | 78667 M'Intosh, W.C., 1885 |
| Page | xv |
| Named Used as Valid | Placostegus assimilis |
| Locality | |
| Distribution | Atlantic Ocean, Off the Bermudas. |