Gyraulus laevis
| Gyraulus laevis | |
|---|---|
.jpg) | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura clade Panpulmonata clade Hygrophila |
| Superfamily: | Planorboidea |
| Family: | Planorbidae |
| Subfamily: | Planorbinae |
| Tribe: | Planorbini |
| Genus: | Gyraulus |
| Species: | G. laevis |
| Binomial name | |
| Gyraulus laevis (Alder, 1838)[1] | |
Gyraulus laevis is a small species of freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.
Distribution
The distribution of this species is Holarctic:
- Germany - critically endangered (vom Aussterben bedroht)[2]
- British Isles, Great Britain and Ireland
Habitat
This small snail lives on water plants in freshwater.
Shell description
For terms see gastropod shell.The 1-2.5 x 3.0-4.5 mm shell is nearly planispiral in its coiling.The shell has 3-4 strongly convex whorls with a deep suture, at the lower side the whorls are in one regular plain and never keeled. The upper side is concave. The colour is horn brown and the surface is shiny, irregularly striated and with no spiral sculpture.
References
- ↑ Alder J. (1838). "Supplement to a catalogue of the land and fresh-water testaceous Mollusca, found in the vicinity of Newcastle". Transactions of the Natural History Society of Northumberland and Durham 1(3): 337-342. Newcastle.
- ↑ Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 107, ISBN 3-923376-02-2
External links
- Gyraulus laevis at Animalbase taxonomy,short description, distribution, biology,status (threats), images