Unio mancus

Unio mancus is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels.[2][3]

Unio mancus
A view of valves of Unio mancus
A live individual of Unio mancus

Near Threatened  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Unionida
Family: Unionidae
Genus: Unio
Species:
U. mancus
Binomial name
Unio mancus
Lamarck, 1819
Synonyms
  • Unio elongatulus Pfeiffer, 1825

Distribution

This species can be found from northeast Spain throughout the Mediterranean zone, northeast Africa and in the Middle East.[4] It is present in Austria, Bosnia and Herzegovina, Croatia, Cyprus, France, Greece, Italy, Lebanon, Montenegro, Slovenia, Spain, Switzerland, Syria and Turkey.[5]

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).[6] 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.[7]

gollark: Solar eclipse = Sticking things in front of a nebula.
gollark: Astronomy = Staring at groups of nebula dragons.
gollark: "Makes no sense" hōw?
gollark: It would, if nothing else, help NDers.
gollark: Imagine the chaos if everyone on the discord bred all their dragons at once.

References

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