| Mussels in the top layers have difficulty accessing primary substrate and must instead attach byssal threads to neighboring shells. |
| The chemistry involved and significance, if any, to cross-linking in byssal adhesive plaques remain unknown. |
| As the right valve of the species, and accordingly the structure of its byssal area is unknown, its generic affiliation remains uncertain. |
| In some, lateral flattening and byssal attachment allows occupation of narrow crevices. |
| It may have facilitated strong byssal attachment in turbulent shallow-water environments. |
| Left anterior auricle shallow, with straight dorsal margin and obtuse, outwardly concave anterior margin lacking a byssal sinus. |
