Ptychopatula orcella (Stoliczka, 1873)
Literature
| Authors | Title |
Year of Publication |
|---|---|---|
| J.J. Vermeulen; A.J. Whitten | Guide to the land snails of Bali | 1998 |
| G.W. Tryon | Manual of Conchology : structural and systematic, with illustrations of the species : second Series: Pulmonata | 1934 |
| G.W. Tryon | Manual of Conchology : structural and systematic, with illustrations of the species : second Series: Pulmonata | 1920 |
| G.W. Tryon | Manual of Conchology : structural and systematic, with illustrations of the species : second Series: Pulmonata | 1900 |
| J.E. Tenison-Woods | Malaysian land and freshwater Mollusca | 1888 |
| G. Nevill | part I Gastropoda : Pulmonata and Prosobranchia-Neurobranchia | 1878 |
| F. Stolicka | On the land shells of Penang Island, with descriptions of the animals and anatomical notes; part second, Helicacea | 1873 |