2011-12-03 Austria, Lower Austria, district Bruck/Leitha - Danube bayou which has fallen dry, National Park (140 msm Quadrant 7867/2).German names: Wandermuschel (Dreissena polymorpha) + Teichmuschel (Anodonta sp.)For the record low of water level exposing these mussels see remarks here.Species identified by Andreas Tiefenbach at naturbeobachtung_at: it is a neozoon which travelled up the Danube river, following water traffic (it is attaching itself to ship hulks), coming from the Black Sea - and is invasive here in Austria already.For habitat shot please click here.
Family: PholadidaeSize: 3,5-7 cmDistribution: Norway and Island to Senegal, Mediterranean, Black SeaLocation: Denmark, Fanleg.det. U.Schmidt, 1977Photo: U.Schmidt, 2007
Drawings of 1 clam and 3 cross sections (4 x 12 cm., 3 x 3 cm., 3 x 5 cm., 4 x 2 cm.)Repository: Ernst Mayr Library, Museum of Comparative Zoology, Harvard UniversityCall number: bAg 168.60.1 (17)