Unio (bivalve)

Unio is a genus of medium-sized freshwater mussels, aquatic bivalve mollusks in the family Unionidae, the river mussels. They are found throughout Europe, Africa, and the Middle East, with some species introduced to East Asia. Fossil species are also known from the Jurassic of North America.^[1]

Unio Temporal range: Late Jurassic–Recent PreꞒ Ꞓ O S D C P T J K Pg N
A shell of Unio pictorum (Painter's mussel), anterior end towards the left
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Unionida
Family:	Unionidae
Subfamily:	Unioninae
Tribe:	Unionini
Genus:	Unio Philipsson [se], 1788
Species
See text
Synonyms
Batavusiana Bourguignat, 1889 (superseded rank) Batavusiana (Crassunio) Modell, 1964 (a junior synonym) Cafferia C. T. Simpson, 1900 junior subjective synonym Consentunio Jatsko, 1972 (junior subjective synonym) Crassiana Servain, 1882 junior subjective synonym Crassunio Modell, 1964 (junior objective synonym) Eolymnium Prashad, 1919 junior subjective synonym Eolymnium (Shadininaia) Starobogatov, 1983 (a junior synonym) Limnium (incorrect subsequent spelling of Lymnium) Lymnium Moquin-Tandon, 1856 Margarita (Unio) Philipsson, 1788 (reversed priority of genus-group names) Margaron (Unio) Philipsson, 1788 (reversed priority of genus-group names) Mysca W. Turton, 1822 junior subjective synonym Nemrodia Pallary, 1939 (unavailable; the name published without designating a type species) † Ningxiaconcha Q.-H. Ma, 1991 junior subjective synonym Nodularia (Cafferia) C. T. Simpson, 1900 superseded combination Pictunio Jatsko, 1972 (junior objective synonym of Unio) Unio (Bataviana) Servain, 1882 (a junior synonym) Unio (Batavusiana) Bourguignat, 1889 (a junior synonym) Unio (Cafferia) C. T. Simpson, 1900 superseded combination Unio (Consentunio) Jatsko, 1972 (junior subjective synonym) Unio (Crassiana) Servain, 1882 junior subjective synonym Unio (Crassunio) Modell, 1964 (junior objective synonym) Unio (Eolymnium) Prashad, 1919 junior subjective synonym Unio (Limnium) [sic] (incorrect subsequent spelling of Lymnium; synonym) Unio (Lymnium) Moquin-Tandon, 1856 Unio (Nemrodia) Pallary, 1939 (original rank) Unio (Tumidunio) Jatsko, 1972 Unio (Tumidusiana) Locard, 1889 Unio (Unio) Philipsson, 1788 Unionea Rafinesque, 1815 (unnecessary substitute name or unjustified emendation of Unio) Unis F. W. Hutton, 1883 (orthographic variant)

Unio is the type genus of the family Unionidae.

Species

Species in the genus Unio include:^[1][2]

• Unio abyssinicus Martens, 1866
• Unio bruguierianus Bourguignat, 1853
• Unio caffer Krauss, 1848
• Unio cariei – extinct^[3] (no longer recognised)
• Unio courtillieri Hattemann, 1859
• Unio crassus Philipsson, 1788 (Thick shelled river mussel) - near threatened
• Unio damascensis Lea, 1863
• Unio delicatus Lea, 1863
• Unio delphinus Spengler, 1793
• Unio dembeae Reeve, 1865
• Unio durieui Deshayes, 1847
• Unio elongatulus C. Pfeiffer, 1825
• Unio eucirrus Bourguignat, 1857
• Unio foucauldianus Pallary, 1936
• Unio gibbus Spengler, 1793
• Unio hueti Bourguignat, 1855
• Unio ionicus Drouët, 1879
• Unio mancus Lamarck, 1819
• Unio meridionalis Drouët, 1883
• Unio pictorum (Linnaeus, 1758) (Painter's mussel)
• Unio ravoisieri Deshayes, 1848
• Unio sesirmensis Kobelt, 1913
• Unio terminalis Bourguignat, 1852
• Unio tigridis Bourguignat, 1852
• Unio tumidiformis Castro, 1885
• Unio tumidus Philipsson, 1788 (Swollen river mussel)
• Unio turtoni (=Unio mancus)