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Unio mancus
A view of valves of Unio mancus
A live individual of Unio mancus
Conservation status
Near Threatened  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Subfamily:	Unioninae
Tribe:	Unionini
Genus:	Unio
Species:	U. mancus
Binomial name
Unio mancus Lamarck, 1819
Synonyms
Unio elongatulus Pfeiffer, 1825 Unio emarginatus I. Lea, 1834 · Unio fascellinus Locard, 1882 Unio lagnisicus Bourguignat, 1882 · Unio manca Lamarck, 1819 Unio plebeius Drouët, 1888 (junior homonym of Unio compressus var. plebius C.B. Adams, 1842) Unio suborbicularis Drouët, 1888 Unio valentinus Rossmässler, 1854 (junior synonym) Unio voltzii var. ursannensis Kobelt, 1911 (junior synonym)

Unio mancus is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.

Subspecies

• Unio mancus mancus Lamarck, 1819
• Unio mancus requienii Michaud, 1831
• Unio mancus turtonii Payraudeau, 1826

Distribution

This species can be found from northeast Spain throughout the Mediterranean zone, northeast Africa and in the Middle East. It is present in Austria, Bosnia and Herzegovina, Croatia, Cyprus, France, Greece, Italy, Lebanon, Montenegro, Slovenia, Spain, Switzerland, Syria and Turkey.

Description

Shells of Unio mancus usually reach a size of 55–65 millimetres (2.2–2.6 in), with a maximum of 10 centimetres (3.9 in). These freshwater mussels have a dark brown or yellowish-green periostracum. The shells are equivalve, inequilateral and oval-shaped, with a rounded anterior margin and a truncated posterior margin. The inner is iridescent white.

References

1. ^ Lopes-Lima, M.; Seddon, M.B. (2014). "Unio mancus". IUCN Red List of Threatened Species. 2014: e.T22737A42466471. doi:10.2305/IUCN.UK.2014-3.RLTS.T22737A42466471.en. Retrieved 13 November 2021.
2. Catalogue of life
3. WoRMS
4. Encyclopedia of life
5. Annales de la Société Linneenne de Maine-et-Loire. – v1 (1853)
6. RAFAEL ARAUJO, IGNACIOGO MEZ AND ANNIE MACHORDOM THE IDENTITY AND BIOLOGY OF UNIO MANCUS LAMARCK, 1819 (=U. ELONGATULUS)(BIVALVIA:UNIONIDAE) IN THE IBERIAN PENINSULA

• Rossmässler, E. A. (1854-1858). Iconographie der Land- & Süßwasser-Mollusken Europa's, mit vorzüglicher Berücksichtigung kritischer und noch nicht abgebildeter Arten. (1) 3

External links

• Lamarck [J.-B. M.] de. (1819). Histoire naturelle des animaux sans vertèbres. Tome 6(1): vi + 343 pp. Paris: published by the author.
• Lea, I. (1834). Observations on the naïades; and descriptions of new species of that, and other families. Transactions of the American Philosophical Society. (NS) 5: 23-119, pls 1-19
• Locard, A. (1882). Prodrome de malacologie française. [I]. Catalogue général des mollusques vivants de France. Mollusques terrestres, des eaux douces et des eaux saumâtres. vi + 462 pp. Lyon: Henri Georg.
• Drouët, H. (1888). Unionidae nouveaux ou peu connus (5ème article). Journal de Conchyliologie. 36(1): 103-111
• Kobelt, W. (1910-1911). In: Rossmässler, E.A., Iconographie der Land- & Süßwasser-Mollusken mit vorzüglicher Berücksichtigung der europäischen noch nicht abgebildeten Arten, (2) 17 (1/2): 1-24, pl. 451-460
• Marrone F., Nardi G., Cianfanelli S., Govedič M., Barra S.A., Arculeo M. & Bodon M. (2019). Diversity and taxonomy of the genus Unio Philipsson in Italy, with the designation of a neotype for Unio elongatulus C. Pfeiffer (Mollusca, Bivalvia, Unionidae). Zootaxa. 4545(3): 339-374
• Froufe, E.; Lopes-Lima, M.; Riccardi, N.; Zaccara, S.; Vanetti, I.; Lajtner, J.; Teixeira, A.; Varandas, S.; Prié, V.; Zieritz, A.; Sousa, R.; Bogan, A. E. (2017). Lifting the curtain on the freshwater mussel diversity of the Italian Peninsula and Croatian Adriatic coast. Biodiversity and Conservation. 26(14): 3255-3274

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