Gyraulus albus

Gyraulus albus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Heterobranchia
Superorder:	Hygrophila
Family:	Planorbidae
Genus:	Gyraulus
Species:	G. albus
Binomial name
	Gyraulus albus; (O. F. Müller, 1774)[1]
Synonyms
	Planorbis albus Müller, 1774; Planorbis hispidus Draparnaud, 1805

Gyraulus albus, common name white ramshorn, is a small species of freshwater snail, an aquatic pulmonate gastropod mollusk in the family Planorbidae, the ram's horn snails.

Gyraulus albus is the type species of the genus Gyraulus.

Distribution

Palearctic:

Belgium
Czech Republic[2] - least concern (LC)
Germany
Hungary
Netherlands[3]
Poland
Slovakia[2]
Great Britain
Ireland

Habitat

This small snail lives in various types of freshwater habitats among weed and on bottom mud. It doesn't require a high level of calcium.

Description

The shell of this species is rather small, reaching a height of 1.3 - 1.8 mm and a width of 4 – 7 mm. This shell has a discoid shape with 4 - 4½ body whorls that expand in the direction of the aperture. This aperture and the whorls are curved and do not have a keel.

The shell of this species is white (sometimes darkened by mud deposits) and has a characteristic spiral sculpture.

References

Müller O. F. (1774). Vermivm terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia. Volumen alterum. pp. I-XXXVI, 1-214, Havniae & Lipsiae. page 164
(in Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.
(in Dutch) Gittenberger E., Janssen A. W., Kuijper W. J., Kuiper J. G. J., Meijer T., van der Velde G. & de Vries J. N. (2004). Nederlandse zoetwatermollusken. Nederlandse Fauna 2. KNNV uitgeverij . 288 pp., ISBN 978-90-5011-201-7. 152-153 Archived 2007-10-23 at the Wayback Machine.

External links

Gyraulus albus at AnimalBase
Media related to Gyraulus albus at Wikimedia Commons

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[1] Müller O. F. (1774). Vermivm terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia. Volumen alterum. pp. I-XXXVI, 1-214, Havniae & Lipsiae. page 164

[Horsák_2010-2] (in Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF.

[3] (in Dutch) Gittenberger E., Janssen A. W., Kuijper W. J., Kuiper J. G. J., Meijer T., van der Velde G. & de Vries J. N. (2004). Nederlandse zoetwatermollusken. Nederlandse Fauna 2. KNNV uitgeverij . 288 pp., ISBN 978-90-5011-201-7. 152-153 Archived 2007-10-23 at the Wayback Machine.