Valvata tricarinata, common name the three-ridge valvata or threeridge valvata, is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Valvatidae, the valve snails.
| Valvata tricarinata | |
|---|---|
 | |
| Drawing: apertural view of shell of Valvata tricarinata | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Family: | Valvatidae |
| Genus: | Valvata |
| Species: | V. tricarinata |
| Binomial name | |
| Valvata tricarinata Say, 1817 | |
| Synonyms | |
Cyclostoma tricarinata Say, 1817 (original combination) | |
Distribution
This species occurs in North America.
Shell description
There is great variation in the degree of carination of the shell.[2]
Paleontology
Valvata tricarinata is abundant in nearly all lacustrine and fluviatile deposits in North America of the Pleistocene period. The fossil shells are more variable than the Recent ones.[2] Eight forms or subspecies were described.[2]
References
This article incorporates public domain text from the reference.[2]
- Turgeon, D.D., et al. 1998. Common and scientific names of aquatic invertebrates of the United States and Canada. American Fisheries Society Special Publication 26