Carychium tridentatum
| Carychium tridentatum | |
|---|---|
 | |
| Apertural view of a shell of Carychium tridentatum | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Order: | Pulmonata |
| (unranked): | clade Heterobranchia clade Euthyneura |
| Superfamily: | Ellobioidea |
| Family: | Ellobiidae |
| Subfamily: | Carychiinae |
| Genus: | Carychium |
| Species: | C. tridentatum |
| Binomial name | |
| Carychium tridentatum (Risso, 1826)[1] | |
Carychium tridentatum is a species of minute air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ellobiidae.
Description
The shell is 1.8-2.3 mm high x 0.8-0.9mm. wide. The shell is more slender than that of Carychium minimum. If the last whorl above the aperture is opened this shows the parietalis (a spiral ridge on the parietal region projecting into the interior of the shell) descending in a characteristic double curve (see figure below).
.png)
Drawing of shells of Carychium tridentatum that have been broken open to show the internal structure.
Distribution
This species occurs in European countries and islands the Mediterranean, the Caucasian region and North Africa
The European countries include:
- Belgium
- Bulgaria
- Czech Republic
- Netherlands
- Poland
- Slovakia
- Great Britain
- Ireland
- Ukraine[2]
It has been introduced to North America, including to:
References
- ↑ Risso, A. 1826: Histoire naturelle des principales productions de l'Europe méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes. Tome quatrième. - pp. [1-3], j-vij [= 1-7], 1-439, pl. [1-12]. Paris. (Levrault).
- ↑ Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
- ↑ Forsyth, R.G. & Williston, P. 2012. Terrestrial snails from an urban park in Vancouver, British Columbia. The Festivus 44(7):77-80.
External links
- Carychium tridentatum at Animalbase