Alvania diadema
From Wikipedia, the free encyclopedia
| Alvania diadema | |
|---|---|
 | |
| Shell of Alvania diadema (specimen at the MNHN, Paris) | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Rissooidea |
| Family: | Rissoidae |
| Genus: | Alvania |
| Species: | †A. diadema |
| Binomial name | |
| †Alvania diadema De Stefani & Pantanelli, 1888 | |
Alvania diadema is an extinct species of minute sea snail, a marine gastropod mollusc or micromollusk in the family Rissoidae.[1]
