Pisidium supinum A. Schmidt, 1851

Marković, Vanja, Gojšina, Vukašin, Novaković, Boris, Božanić, Milenka, Stojanović, Katarina, Karan-Žnidaršič, Tamara & Živić, Ivana, 2021, The freshwater molluscs of Serbia: Annotated checklist with remarks on distribution and protection status, Zootaxa 5003 (1), pp. 1-64 : 36

74. Pisidium supinum A. Schmidt, 1851

Findings in Serbia.

Pisidium supinum: Tomović et al. (2010 b) ; Tomović et al. (2014).

Common name. Hump-backed pea mussel.

Morphology. Minute bivalve. Shell is solid, tumid, with a rounded triangular outline shape. The dimensions are typically up to 4 mm in length, height 3.7 mm, and depth 2.8 mm. For more details see Welter-Schultes (2012: 23).

Distribution and ecology. Palearctic species found in northern and western Europe and Central Asia. Introduced species in North America ( Canada). It prefers muddy and sandy substrate of large lowland rivers, yet it can be found in more dynamic lotic environments as well. In Serbia, it was recorded in the Danube.

Other remarks. Fairly sensitive to pollution, this mussel is absent in Ireland, while endangered in Germany and vulnerable in Austria ( Welter-Schultes 2012). On the IUCN Red List of threatened species it has been assessed as LC ( Seddon 2011 f).

Genus Sphaerium Scopoli, 1777