Unio tumidus

Unio tumidus, the swollen river mussel, is a species of freshwater mussel, an aquatic bivalve mollusc in the family Unionidae, the river mussels.^[3]

Subspecies

• † Unio tumidus ludwigi Wenz, 1922

Swollen river mussel
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Genus:	Unio
Species:	U. tumidus
Binomial name
Unio tumidus Philipsson [de] in Retzius, 1788[2]
Distribution of Unio tumidus in Europe.

Synonyms

• Mya depressa Donovan, 1801 (a junior synonym)
• Mysca solida W. Turton, 1822 junior subjective synonym
• Unio (Tumidusiana) tumidus Philipsson, 1788 ·
• Unio (Unio) conus Spengler, 1793 ·
• Unio (Unio) muelleri Rossmässler, 1838 (a junior synonym)
• Unio (Unio) tumidus Philipsson, 1788 ·
• Unio conus Spengler, 1793 ·
• Unio gerstfeldtianus Clessin, 1880 · (a junior synonym)
• Unio inflata Hecart, 1833 (unavailable; a junior homonym of Unio inflatus Studer, 1820)
• Unio lauterborni F. Haas, 1909 (a junior synonym)
• Unio limosus var. maxima Mörch, 1864 (a junior synonym)
• Unio muelleri Rossmässler, 1838 ·
• Unio ovalis (Montagu, 1803) ·
• Unio rhenanus Kobelt, 1886 (a junior synonym)
• Unio tumidus gerstfeldtianus Clessin, 1880 (a junior synonym)
• Unio tumidus ilekensis Kobelt, 1911 (a junior synonym)
• Unio tumidus var. bashkiricus Zhadin, 1938 (a junior synonym)
• Unio tumidus var. borysthenensis Kobelt, 1880 (a junior synonym)
• Unio tumidus var. corrosus Zelebor, 1851 (a junior synonym)
• Unio tumidus var. falcatulus Drouët, 1881 (a junior synonym)
• Unio tumidus var. fridmani Zhadin, 1938 (a junior synonym)
• Unio tumidus var. heckingi Colbeau, 1868 (a junior synonym)
• Unio tumidus var. kobeltianus Zhadin, 1938 ·
• Unio tumidus var. limicola Mörch, 1864 (a junior synonym)
• Unio tumidus var. moltschanovi Zhadin, 1938 (a junior synonym)
• Unio tumidus var. okae Kobelt, 1911 (invalid; junior homonym of Unio...)
• Unio tumidus var. picta Mörch, 1864 ·
• Unio tumidus var. rohrmanni Kobelt, 1880 (a junior synonym)
• Unio tumidus var. saccatus Rossmässler, 1858 (a junior synonym)

Distribution

Its native distribution is European.^[1][4]

• Croatia
• Czech Republic - in Bohemia, in Moravia,^[5] vulnerable (VU)^[6][7]
• Germany
  • Germany - high endangered (Stark gefährdet) ^[8]
  • Germany - Listed as a specially protected species in annex 1 in Bundesartenschutzverordnung.
• Latvia
• Lithuania - vulnerable
• Netherlands
• Poland
• Slovakia
• Sweden^[9]
• British Isles - in England