| উদ্ধৃতি | Smithsonian Institution, 2016 Alvania gradata (d' Orbigny, 1842). http://collections.si.edu/search/results.htm?q=Alvania%09gradata [Accessed 14/11/2016]. |
| সূত্র | 113205 Smithsonian Institution, 2016 |
| পৃষ্ঠা | |
| Named Used as Valid | Alvania gradata |
| এলাকা | |
| Distribution |