
Freshwater mussel ANODONTA WOODIANA
in lake-margin and river settings of Umbria, Italy
The neoichnology of the freshwater mussel Anodonta (Sinanodonta) woodiana (Lea, 1834) is examined herein in some continental environments of Umbria (central italy), such as lake-margin and river dam-margin settings. This study, based on analysis of about 200 traces, reveals that this mussel burrows employing two types of behaviours: bulldozing which produces horizontal meanders to straight bilobate traces, often lled with peloidal faecal pellets (pseudofaeces and back ll), an