Alasmidonta heterodon (Dwarf Wedge Mussel) is a species of mussels in the family unionid freshwater mussels. They are listed as vulnerable by IUCN and as extirpated by COSEWIC. They are associated with freshwater habitat. They are native to The Nearctic. They are detritivores. They have sexual reproduction. They have parental care (female provides care).
EOL has data for 21 attributes, including: