Description
日本語: ドブガイ（Sinanodonta woodiana）。淡水に生息するイシガイ科の二枚貝。鹿児島県の藺牟田池での写真。
Date 30 August 2009
Source Own work
Author Hirase https://commons.wikimedia.org/wiki/User:Hirase
Source: https://commons.wikimedia.org/wiki/File:20090830_imutaike_kagoshima-ken_japan.jpg

The Chinese pond mussel, Eastern Asiatic freshwater clam or swan-mussel (Sinanodonta woodiana) is a species of freshwater mussel, an aquatic bivalve mollusk in the family Unionidae, the river mussels. Anodonta (Sinanodonta) woodiana is a species of East Asian unionid mussel, primarily from the Amur River and Yangtze rivers. The Chinese pond mussel can reach sizes of up to 30 cm and an age of 12–14 years. Yet, they can reproduce in their first year while only 3–4 cm in size. Order: Unionoida, Family: Unionidae, Synonyms: Anodonta woodiana.