| Citation | Herzenstein, S., 1885 Beiträge zur Kenntniss der Fauna der Murmanküste und des Weissen Meeres: Mollusca. Tr. St-Peterburgsk. Obshch. Estestv. 16(2):635-814. |
| Ref. | 125454 Herzenstein, S., 1885 |
| Page | |
| Named Used as Valid | Portlandia intermedia |
| Locality | |
| Distribution | White Sea. |