| Type | PARALECTOTYPE |
| Catalogue # | OSUM 18116 |
| Type locality | Lake Erie at Presque Isle, Erie Co., Pennsylvania, [USA] |
| Collector(s) | A.E. Ortmann |
| Date collected | Jan. 1910 |
| # Specimens | 1 dry |
| Description | Nautilus 32: 9 |
| Remarks | |
| Current status | Elliptio dilatata (Rafinesque, 1820) |