84. Anodonta cygnea (Linnaeus, 1758)

Findings in Serbia.

Anodonta savensis: Dokić (1882); Tadić (1960).

Anodonta moesica: Dokić (1882); Tadić (1960).

Anodonta ventricosa: Droüet (1881, 1884); Dokić (1882).

Anodonta cariosa: Droüet (1881, 1884); Dokić (1882).

Anodonta cygnea: Tadić (1960); Matoničkin et al. (1975); JDS-ITR Report (2002); Simić & Simić (2004); Martinović-Vitanović et al. (2007, 2013); Tubić et al. (2013).

Common name. Swan mussel

Morphology. Large bivalve. Oblong shaped shell with dorsal and ventral margins more or less parallel. It reaches 200 mm in length, 120 mm in width, and 60 mm in depth. For more details see Welter-Schultes (2012: 8, figure at the bottom of the page).

Distribution and ecology. Western-Palearctic species commonly found on a fine substrate of slow-flowing and standing waters (Zettler et al. 2006). It often could be dominant unionid species in larger lentic ecosystems (lakes, reservoirs, large ponds). In Serbia more recently the species has been detected in the reservoirs Gruža and Ćelija (Tomović 2016), in the Šumarica Lake, and in the Zasavica Wetland (Marković 2020 pers. comm).

Other remarks. Due to habitats destruction and decreasing population trends it has NT IUCN status in Europe (Killeen & Aldridge 2011). It has 438 nominal species as synonyms (Graf & Cummings 2021).

Genus Pseudanodonta Bourguignat, 1877