| The shell-boring polychaete species were identified on the basis of fifth setiger chaetae, prostomium and pygidium morphology, and branchiae distribution. |
| The prostomium is conical and shorter or equal to its base at the peristomium. |
| Prostomium anteriorly rounded, posteriorly extending to chaetiger. |
| One pair of palps located lateral to prostomium and median to peristomial ridges. |
| Morphologically, it is characterized by a blunt prostomium forming a hood over its mouth. |
| Descriptions of this species, prostomium elongate are rounded anteriorly, flanked laterally by peristomial ridges leading to ventral mouth. |
