Zonitoides excavatus
From Wikipedia, the free encyclopedia
| Zonitoides excavatus | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Stylommatophora |
| Family: | Gastrodontidae |
| Genus: | Zonitoides |
| Species: | Z. excavatus |
| Binomial name | |
| Zonitoides excavatus | |
| Synonyms[2] | |
| |
Zonitoides excavatus is a European species of small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae.[3]
Distribution of Zonitoides excavatus include:
- British Isles: Great Britain and Ireland. In Britain it restricted to a few regions, but frequent in the zones where it occurs (Cornwall, south of London, west Wales, Eastern, southwest and northwest Ireland, specifically Portman, Clonee, Clonakilty and Clare island, central England, southwest Scotland).[4]
- On the redlist in Ireland of species under threat, Endangered in Germany (2009).[4]
- Netherlands[4]
- Denmark[4]
- Belgium[4]
- northern France.[4]
Description
Zonitoides excavatus is smaller than Zonitoides nitidus.[4] The flat and shiny shell is tightly coiled. It is weakly brown or greenish brown, slightly transparent, with radial streaks.[4] The umbilicus is extremely wide and perspectivically open (as is the case in Discus rotundatus).[4] The animal is dark.[4]
The width of the shell is 5.3–7 mm (0.21–0.28 in), and the height of the shell is 2.8–3.4 mm (0.11–0.13 in).[4]
