| Citation | Segers, W., F. Swinnen and A.D. Abreu, 2009 An annotated checklist of the marine molluscs from the archipelagos of Madeira and the Selvagens (NE Atlantic Ocean). Museu Municipal do Funchal (Historia Natural). |
| Ref. | 105808 Segers, W., F. Swinnen and A.D. Abreu, 2009 |
| Page | 10 |
| Named Used as Valid | Tectonatica sagraiana |
| Locality | |
| Distribution | Madeira Island. |