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Painter's mussel
	Left valve of a brown shell
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Genus:	Unio
Species:	U. pictorum
Binomial name
	Unio pictorum; (Linnaeus, 1758)
	Distribution of Unio pictorum in Europe.

Unio pictorum is moving on the muddy bottom of a freshwater lake. Russia, the Southern Urals.

Unio pictorum, the painter's mussel, is a species of medium-sized freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. ^[2]

This species lives in Europe. It is called the "painter's mussel" because the shell was historically used as a conveniently sized and shaped receptacle for holding artist's paint.

Subspecies

† Unio pictorum alexeevi Mangikian, 1929
† Unio pictorum pseudorumanus Chepalyga, 1967
† Unio pictorum rumanoides Chepalyga, 1967

Synonyms

Limnium pictorum(Linnaeus, 1758) ·
Lymnium pictorum (Linnaeus, 1758) ·
Mya nodosa Gmelin, 1791 (a junior synonym)
Mya ovalis Philipsson, 1788 (a junior synonym)
Mya pictorum Linnaeus, 1758 (original combination)
Unio (Unio) kalmykorum Bogachev, 1924 (junior subjective synonym)
Unio (Unio) limosus Nilsson, 1822 (a junior synonym)
Unio (Unio) pictorum (Linnaeus, 1758) ·
Unio (Unio) protractus Lindholm, 1932 (junior subjective synonym)
Unio (Unio) rostrata Lamarck, 1819 (a junior synonym)
Unio annulatus Kobelt, 1911 (a junior synonym)
Unio ascanius Kobelt, 1912 (junior synonym)
Unio deshayesii Michaud, 1831 (a junior synonym)
Unio gaudioni Drouët, 1881 (junior synonym)
Unio gentilis F. Haas, 1911junior subjective synonym
Unio inflatus Studer, 1820 (a junior synonym)
Unio kalmykorum Bogachev, 1924 (a junior synonym)
Unio latirostris Küster, 1853 (a junior synonym)
Unio limosus Nilsson, 1822 (a junior synonym)
Unio limosus behningi Starobogatov & Pirogov, 1970 (a junior synonym)
Unio lindholmi Zhadin, 1938 (a junior synonym)
Unio longirostris Rossmässler, 1836 ·
Unio longirostris schrenckianus Clessin, 1880 (a junior synonym)
Unio maltzani Küster, 1854 (a junior synonym)
Unio pictorum okensis Zhadin, 1938 (a junior synonym)
Unio pictorum var. grandis Rossmässler, 1842 (a junior synonym)
Unio pictorum var. okae Kobelt, 1911 (invalid; junior homonym of Unio...)
Unio pictorum var. okensis Zhadin, 1938 (junior synonym)
Unio pictorum var. pachyodon H. Jordan, 1879 junior subjective synonym
Unio pictorum var. pygmaeus Zhadin, 1938 (a junior synonym)
Unio pictorum var. tumens de Joannis, 1859 (a junior synonym)
Unio pictorum var. vinceleus de Joannis, 1859 (a junior synonym)
Unio platyrhynchus Rossmässler, 1835 (a junior synonym)
Unio ponderosus Rossmässler, 1842 (a junior synonym)
Unio praeposterus Küster, 1853 (a junior synonym)
Unio protractus Lindholm, 1932 ·
† Unio protractus subpictorum Lindholm, 1932 (subjective synonym)
Unio quinqueannulatus Küster, 1854 (junior synonym)
Unio rostrata Lamarck, 1819 ·
Unio rostratus Lamarck, 1819 (wrong gender agreement)
Unio schrenkianus Clessin, 1880 (a junior synonym)
Unio voltzii Kobelt, 1911 (invalid; not Koch & Dunker, 1837)

Distribution

The native distribution of this species is Europe and Siberia (Russia).^[1]

Croatia
Czech Republic - in Bohemia, in Moravia,^[3] least concern (LC);^[4]^[5] Czech code, Decree for implementation, No. 395/1992 Sb. (and No. 175/2006 Sb.) - Critically Threatened species.
Slovakia^[3] - not in red lists
Estonia – frequent.
Germany
- endangered (gefährdet)^[6]
- Listed as specially protected species in annex 1 in Bundesartenschutzverordnung.
Netherlands - Common (algemeen)^[7]^[8]
Serbia
Russia
Sweden - not so common, scattered occurrence^[9]
British Isles - mostly in England

Biotope: water bodies and slower streams.

References

^ ^a ^b Van Damme, D. (2011). "Unio pictorum". IUCN Red List of Threatened Species. 2011: e.T155543A4795613. doi:10.2305/IUCN.UK.2011-2.RLTS.T155543A4795613.en. Retrieved 19 November 2021.
^ MolluscaBase eds. (2023). MolluscaBase. Unio pictorum (Linnaeus, 1758). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=234102 on 2023-01-09
^ ^a ^b (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.
^ Juřičková L., Horsák M. & Beran L., 2001: Check-list of the molluscs (Mollusca) of the Czech Republic. Acta Soc. Zool. Bohem., 65: 25-40.
^ "Red List of the molluscs (Mollusca) of the Czech Republic".
^ (in German) Glöer P. & Meier-Brook C. (2003) Süsswassermollusken. DJN, pp. 134, page 109, ISBN 3-923376-02-2
^ "Schildersmossel - Unio pictorum".
^ "Natuurinformatie - Vragen".
^ Painter's mussel - Naturhistoriska riksmuseet