Segmentina nitida
| Segmentina nitida | |
|---|---|
 | |
| Apical view of a shell of Segmentina nitida | |
| NE[1] | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia clade Euthyneura clade Panpulmonata clade Hygrophila |
| Superfamily: | Planorboidea |
| Family: | Planorbidae |
| Subfamily: | Planorbinae |
| Tribe: | Segmentinini |
| Genus: | Segmentina |
| Species: | S. nitida |
| Binomial name | |
| Segmentina nitida (O. F. Müller, 1774) | |
The shining ram's-horn snail, Segmentina nitida, is a species of minute, air-breathing, freshwater snail, an aquatic gastropod mollusk or micromollusk in the family Planorbidae, the ramshorn snails.
Description
Drawing showing three views of a shell of Segmentina nitida
The shell of this species is sinistral in coiling and almost planispiral in shape. The spire is deeply sunken. The surface of the shell is glossy.[2]
The maximum shell diameter is about 7 mm.[2]
Habitat
This species lives in water weeds, in ponds and marsh drainage ditches. It is uncommon to rare.[2]
Distribution
This species occurs in countries and islands including:
- Czech Republic - vulnerable (VU)[3]
- British Isles - listed in List of endangered species in the British Isles.
- Great Britain in England - endangered (EN)[4]
- Germany - endangered (gefährdet)[5]
- Netherlands[6]
- Poland
- Slovakia
- Latvia
References
- ↑ 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 5 March 2007.
- 1 2 3 Janus, Horst, 1965. The young specialist looks at land and freshwater molluscs. Burke, London.
- ↑ Juřičková L., Horsák M. & Beran L. (2001). "Check-list of the molluscs (Mollusca) of the Czech Republic". Acta Soc. Zool. Bohem. 65: 25-40.
- ↑ UK Biodiversity Action Plan http://www.ukbap.org.uk/UKPlans.aspx?ID=570
- ↑ (German) Glöer P. & Meier-Brook C. (2003). Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2
- ↑ (Dutch) http://www.anemoon.org/anm/voorlopige-kaarten/kaarten-per-soort/zoetwatermollusken/wetenschappelijk/segmentina-nitida/
External links
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Wikimedia Commons has media related to Segmentina nitida. |
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