| সূত্র সংখ্যা | বর্ণনা | বৎসর | ব্যবহৃত নাম | পৃষ্ঠা |
|---|---|---|---|---|
| 7780 | Le Renard, J. and P. Bouchet 2003 New species and genera of the family Pickworthiidae (Mollusca, Caenogastropoda). Zoosystema 25(4):569-591. | 2003 | Chrystella verdensis | 588 |
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. Brooks/Cole, Thomson Learning learning, Inc. 990 p. | 2004 | Chrystella verdensis | --> |