| Grated tryonia | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Family: | Hydrobiidae |
| Genus: | Tryonia |
| Species: | T. clathrata |
| Binomial name | |
| Tryonia clathrata Stimpson, 1865 | |
The grated tryonia, also known as the White River snail, scientific name Tryonia clathrata, is a species of very small or minute freshwater snail with an operculum, an aquatic gastropod mollusc in the family Hydrobiidae. This species is endemic to the United States.