| Synonymous name | : | Arvicola sigmodus Cope, 1871 | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | Arvicola speothen (Cope, 1871) | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | Arvicola tetradelta Cope, 1871 | |
Ref: PBDB: 30 Apr 2013. |
| Synonymous name | : | Microtus involutus Cope, 1871 | |
Ref: PBDB: 12 May 2018. |