Sulfurina
Literature
| Authors | Title |
Year of Publication |
|---|---|---|
| A.J. Wagner | Helicinenstudien. Monographie der genera Palaeohelicina A.J.Wagner und Helicina Lamarck | 1905 |
| E.A. Smith | On the land-shells of the Natuna Islands | 1894 |
| H.H. Godwin-Austen | On a Collection of Land-Shells made in Borneo by Mr. A. Everett, with Descriptions of supposed new species. Part I. | 1889 |