Unio abyssinicus Martens, 1866
syonymy (6 available, 8 total) | specimens (9)
Range: Lake Tana, Ethiopia and as a subfossil in the Nile, northeastern Africa. (Afrotropics)
IUCN Red List: Endangered B1ab(ii,iii)+2ab(ii,iii)
other links: MolluscaBase

Unio bruguierianus Bourguignat, 1853
syonymy (10 available, 21 total) | specimens (1 + 70 Genbank vouchers)
Range: Eastern Mediterranean Europe to Turkey. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, SRA
other links: MolluscaBase

Unio caffer Krauss, 1848
syonymy (22 available, 31 total) | specimens (186 + 1 Genbank voucher)
Range: Southern Africa, north to the Zambezi. (Afrotropics)
Genbank sequences: 28S, COI
IUCN Red List: Least Concern
other links: MolluscaBase

Unio carneus Küster, 1854
syonymy (3 available, 3 total) | specimens (0 + 29 Genbank vouchers)
Range: Drin River in eastern Mediterranean Europe. (North Eurasia)
Genbank sequences: 16S, COI, mtGenome, SRA
IUCN Red List: Vulnerable A2c
other links: MolluscaBase

Unio crassus Philipsson in Retzius, 1788
syonymy (112 available, 211 total) | specimens (98 + 264 Genbank vouchers)
Range: Widespread in continental Europe through the Dardanelles to Transcaucasia. (North Eurasia)
Genbank sequences: 16S, 18S, 28S, 5.8S, COI, ITS1, mtGenome, ND1, other, SRA
IUCN Red List: Endangered A2ac
other links: MolluscaBase

Unio damascensis Lea, 1863
syonymy (3 available, 3 total) | specimens (3 + 32 Genbank vouchers)
Range: Mediterranean Central Turkey to the Orontes River in Syria. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, SRA
other links: MolluscaBase

Unio delicatus Lea, 1863
syonymy (17 available, 22 total) | specimens (33 + 55 Genbank vouchers)
Range: European Turkey, to the Orontes in Syria. (North Eurasia)
Genbank sequences: 16S, 28S, COI
other links: MolluscaBase

Unio delphinus Spengler, 1793
syonymy (38 available, 45 total) | specimens (13 + 47 Genbank vouchers)
Range: Atlantic basins of the Iberian Peninsula and Morocco. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, mtGenome M-type, other, SRA
IUCN Red List: Endangered A2bc
other links: MolluscaBase

Unio dembeae Reeve, 1865
syonymy (11 available, 20 total) | specimens (14)
Range: The Nile and Lake Turkana basins in northeastern Africa. (Afrotropics)
other links: MolluscaBase

Unio desectus Westerlund in Westerlund & Blanc 1879
syonymy (1 available, 2 total) | specimens (0 + 15 Genbank vouchers)
Range: Greece. (North Eurasia)
Genbank sequences: 16S, COI, mtGenome, SRA
IUCN Red List: Endangered B1ab(iii,v)+2ab(iii,v)
other links: MolluscaBase

Unio durieui Deshayes, 1847
syonymy (8 available, 10 total) | specimens (2 + 10 Genbank vouchers)
Range: Mediterranean northern Africa. (North Eurasia)
Genbank sequences: 16S, 28S, COI
IUCN Red List: Critically Endangered A2c
other links: MolluscaBase

Unio elongatulus Pfeiffer, 1825
syonymy (77 available, 91 total) | specimens (4 + 52 Genbank vouchers)
Range: Mediterranean Europe. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, other
IUCN Red List: Endangered A2bce
other links: MolluscaBase

Unio eucirrus Bourguignat, 1857
syonymy (1 available, 1 total) | specimens (0 + 3 Genbank vouchers)
Range: Karamenderes River, Turkey. (North Eurasia)
Genbank sequences: 16S, 28S, COI
other links: MolluscaBase

Unio foucauldianus Pallary, 1936
syonymy (1 available, 2 total) | specimens (0 + 20 Genbank vouchers)
Range: Morocco, Palearctic North Africa. (North Eurasia)
Genbank sequences: 16S, 28S, COI
IUCN Red List: Critically Endangered B1ab(i,ii,iii,iv,v)
other links: MolluscaBase

Unio gibbus Spengler, 1793
syonymy (4 available, 5 total) | specimens (0 + 24 Genbank vouchers)
Range: Iberian Peninsula and Morocco. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, SRA
other links: MolluscaBase

Unio gontierii Bourguignat, 1856
syonymy (11 available, 13 total) | specimens (0 + 17 Genbank vouchers)
Range: Streams draining to the Black and Caspian Seas in Ukraine to Georgia. (North Eurasia)
Genbank sequences: COI, mtGenome, SRA
other links: MolluscaBase

Unio hueti Bourguignat, 1855
syonymy (1 available, 1 total) | specimens (0 + 5 Genbank vouchers)
Range: Upper Euphrates in Syria and Iraq. (North Eurasia)
Genbank sequences: 16S, 28S, COI
other links: MolluscaBase

Unio ionicus Drouët, 1879
syonymy (3 available, 4 total) | specimens (1 + 34 Genbank vouchers)
Range: Greece. (North Eurasia)
Genbank sequences: 16S, COI, mtGenome, SRA
IUCN Red List: Endangered B2ab(ii,iii,v)
other links: MolluscaBase

Unio mancus Lamarck, 1819
syonymy (135 available, 200 total) | specimens (75 + 110 Genbank vouchers)
Range: Spain to Italy, in basins draining to the Mediterranean. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome
IUCN Red List: Data Deficient (Unio turtoni), Endangered A2ac
other links: MolluscaBase

Unio mardinensis Lea, 1865
syonymy (17 available, 18 total) | specimens (5 + 17 Genbank vouchers)
Range: Euphrates and Aras basins in Syria, Iraq, and Turkey. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, SRA
other links: MolluscaBase

Unio nanus Lamarck, 1819
syonymy (92 available, 104 total) | specimens (47 + 251 Genbank vouchers)
Range: Widespread in Europe. (North Eurasia)
Genbank sequences: 16S, 28S, 5.8S, COI, COI M-type, Cytb, ITS1, mtGenome, mtGenome M-type, ND1, other, SRA
IUCN Red List: Endangered A2ac
other links: MolluscaBase

Unio pictorum (Linnaeus, 1758)
syonymy (100 available, 158 total) | specimens (66 + 143 Genbank vouchers)
Range: Widespread in Europe, from the Atlantic to the Volga and Black Sea. Introduced to the Amur Basin, eastern Asia. (North Eurasia, East Asia)
Genbank sequences: 16S, 16S M-type, 18S, 28S, 5.8S, COI, COI M-type, Cytb, H3, ITS1, mtGenome, mtGenome M-type, other, SRA
IUCN Red List: Least Concern
other links: MolluscaBase

Unio ravoisieri Deshayes, 1848
syonymy (10 available, 14 total) | specimens (0 + 23 Genbank vouchers)
Range: Iberian Peninsula and northern Africa. (North Eurasia)
Genbank sequences: 16S, 18S, 28S, COI
other links: MolluscaBase

Unio sesirmensis Kobelt, 1913
syonymy (1 available, 1 total) | specimens (0 + 11 Genbank vouchers)
Range: Turkey. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, SRA
other links: MolluscaBase

Unio terminalis Bourguignat, 1852
syonymy (17 available, 20 total) | specimens (31 + 6 Genbank vouchers)
Range: Jordon River basin, Israel. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, SRA
IUCN Red List: Vulnerable A2bce
other links: MolluscaBase

Unio tigridis Bourguignat, 1852
syonymy (22 available, 28 total) | specimens (41 + 23 Genbank vouchers)
Range: Syria to Iraq. (North Eurasia)
Genbank sequences: 16S, 28S, COI
IUCN Red List: Least Concern
other links: MolluscaBase

Unio tumidiformis Castro, 1885
syonymy (7 available, 9 total) | specimens (0 + 33 Genbank vouchers)
Range: Southwestern rivers on the Iberian Peninsula, Portugal and Spain. (North Eurasia)
Genbank sequences: 16S, 28S, COI, mtGenome, SRA
IUCN Red List: Critically Endangered A2abc
other links: MolluscaBase

Unio tumidus Philipsson in Retzius, 1788
syonymy (61 available, 89 total) | specimens (32 + 96 Genbank vouchers)
Range: Widespread in Europe. Introduced to the Amur Basin. (North Eurasia, East Asia)
Genbank sequences: 16S, 16S M-type, 18S, 28S, 5.8S, COI, COI M-type, Cytb, ITS1, mtGenome, mtGenome M-type, ND1, other, SRA
IUCN Red List: Least Concern
other links: MolluscaBase

Unio vicarius Westernlund in Westerlund & Blanc, 1879
syonymy (4 available, 6 total) | specimens (0 + 74 Genbank vouchers)
Range: From the Balkans east to Romania and Greece. (North Eurasia)
Genbank sequences: 16S, COI, mtGenome, SRA
IUCN Red List: Vulnerable A2c
other links: MolluscaBase

Unio asturianus Delevene, Munt, Piñuela & García-Ramos, 2016 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Late Jurassic, Spain. (North Eurasia)
other links: MolluscaBase

Unio baileyi Logan, 1900 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Jurassic, North America.
other links: MolluscaBase

Unio bituberculosus Martens, 1874 (fossil)
syonymy (2 available, 2 total) | specimens (0)
other links: MolluscaBase

Unio exquisitus Lindholm, 1932 (fossil)
syonymy (1 available, 1 total) | specimens (0)
other links: MolluscaBase

Unio iridoides White, 1886 (Jurassic)
syonymy (1 available, 3 total) | specimens (0)
Range: Jurassic, North America.

Unio kirchbergensis Krauss, 1852 (Tertiary)
syonymy (1 available, 1 total) | specimens (0)
Range: Miocene, Germany. (North Eurasia)
other links: MolluscaBase

Unio knightii Logan, 1900 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Jurassic, North America.
other links: MolluscaBase

Unio lapilloides White, 1886 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Jurassic, North America.
other links: MolluscaBase

Unio macropisthus White, 1886 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Jurassic, North America.
other links: MolluscaBase

Unio mammillaris Yen, 1952 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Jurassic, North America.

Unio migliorinii Magrograssi, 1928 (Tertiary)
syonymy (1 available, 1 total) | specimens (0)
Range: Isle of Rhodes, Tertiary. (North Eurasia)
other links: MolluscaBase

Unio nucalis Meek & Hayden, 1858 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Jurassic, North America.
other links: MolluscaBase

Unio pseudatavus Bukowski, 1896 (Tertiary)
syonymy (3 available, 3 total) | specimens (0)
Range: Isle of Rhodes, Tertiary. (North Eurasia)
other links: MolluscaBase

Unio tschiliensis Sturany, 1901 (Quaternary)
syonymy (1 available, 1 total) | specimens (0)
Range: Pleistocene, Asia.

Unio uniseralis (Lindholm, 1932) (fossil)
syonymy (1 available, 1 total) | specimens (0)
other links: MolluscaBase

Unio willistoni Logan, 1900 (Jurassic)
syonymy (1 available, 1 total) | specimens (0)
Range: Jurassic, North America.
other links: MolluscaBase