| Fraternal snail | |
|---|---|
 | |
| M. feralis in California, United States | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Xanthonychidae |
| Genus: | Micrarionta |
| Species: | M. feralis |
| Binomial name | |
| Micrarionta feralis (Hemphill, 1901) | |
The fraternal snail (also known as the San Nicolas Island snail, scientific name Micrarionta feralis) is a species of air-breathing land snail. It is a terrestrial pulmonate gastropod mollusk in the family Helminthoglyptidae. This species is endemic to the United States, specifically California.