Hippeutis complanatus

Hippeutis complanatus
Conservation status
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:	Hippeutis
Species:	H. complanatus
Binomial name
Hippeutis complanatus (Linnaeus, 1758)[2]
Synonyms
Segmentina complanata

Hippeutis complanatus, or the flat ram's-horn snail, is a species of minute air-breathing freshwater snail, an aquatic pulmonate gastropod mollusk or micromollusk in the family Planorbidae, the ram's horn snails.

Hippeutis complanatus is the type species of the genus Hippeutis.

Distribution

The species is found in the Palearctic zone, including Europe.

• Latvia
• Czech Republic - least concern (LC)^[3]
• Slovakia
• Poland
• Germany
• Austria
• Netherlands^[4]
• Sweden
• British Isles: Great Britain, Ireland

Shell description

This minute shell is almost perfectly planispiral and shaped like a lens. The whorls overlap one another. The shell color varies from offwhite to a brownish yellow.

Ecology

This snail lives in ponds and ditches, and prefers calcium-rich waters.^[5]

References

1. 2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Cited 5 March 2007.
2. Linnaeus, C. 1758. Systema Naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. 10th edition. - Vermes. Testacea: 700-781. Holmiae. (Salvius).
3. Juřičková L., Horsák M. & Beran L., 2001: Check-list of the molluscs (Mollusca) of the Czech Republic. Acta Soc. Zool. Bohem., 65: 25-40.
4. (Dutch) Hippeutis complanatus, ANEMOON
5. Janus, Horst, 1965. ‘’The young specialist looks at land and freshwater molluscs’’, Burke, London

External links

• Hippeutis complanatus at Animalbase taxonomy,short description, distribution, biology,status (threats), images
• Hippeutis images at Consortium for the Barcode of Life