| Ref. | Description | Named Used | Page |
|---|---|---|---|
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. | Pellasimnia improcera | |
| 86518 | Poppe, G.T. 2008 Philippine marine mollusks. Vol. 1 (Gastropoda - Part 1). | Pellasimnia improcera | 104, 462, 468, pl 176, 179 |
| 104070 | www.reeflex.net 2015 Snails (331). | Pellasimnia improcera | |
| 104071 | www.meerwasser-lexikon.de 2015 Gehäuseschnecken (331). | Pellasimnia improcera |